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131020211300 = 225211370132183
BaseRepresentation
bin111101000000101101…
…0011100010001100100
3110112012000122100102112
41322001122130101210
54121312133230200
6140105001500152
712315542264216
oct1720132342144
9415160570375
10131020211300
1150624547a70
12214864a1658
13c48036a364
1464acb985b6
15361c6d8535
hex1e8169c464

131020211300 has 72 divisors (see below), whose sum is σ = 310254017472. Its totient is φ = 47629360000.

The previous prime is 131020211297. The next prime is 131020211303. The reversal of 131020211300 is 3112020131.

It is an interprime number because it is at equal distance from previous prime (131020211297) and next prime (131020211303).

It is not an unprimeable number, because it can be changed into a prime (131020211303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4055009 + ... + 4087191.

It is an arithmetic number, because the mean of its divisors is an integer number (4309083576).

Almost surely, 2131020211300 is an apocalyptic number.

131020211300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131020211300 is an abundant number, since it is smaller than the sum of its proper divisors (179233806172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131020211300 is a wasteful number, since it uses less digits than its factorization.

131020211300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35909 (or 35902 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 131020211300 its reverse (3112020131), we get a palindrome (134132231431).

The spelling of 131020211300 in words is "one hundred thirty-one billion, twenty million, two hundred eleven thousand, three hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 3701 7402 14804 18505 32183 37010 40711 64366 74020 81422 92525 128732 160915 162844 185050 203555 321830 354013 370100 407110 643660 708026 804575 814220 1017775 1416052 1609150 1770065 2035550 3218300 3540130 4071100 7080260 8850325 17700650 35401300 119109283 238218566 476437132 595546415 1191092830 1310202113 2382185660 2620404226 2977732075 5240808452 5955464150 6551010565 11910928300 13102021130 26204042260 32755052825 65510105650 131020211300