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2131300232020 = 2251314671741913
BaseRepresentation
bin11111000000111011011…
…001001010101101010100
321112202020222101201121101
4133000323121022231110
5234404400324411040
64311034504355444
7306660415030231
oct37007331125524
97482228351541
102131300232020
11751974466533
122a5088175b84
13125c9992565b
14752268da788
153a69007a09a
hex1f03b64ab54

2131300232020 has 48 divisors (see below), whose sum is σ = 4519556129088. Its totient is φ = 844200231680.

The previous prime is 2131300231897. The next prime is 2131300232027. The reversal of 2131300232020 is 202320031312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131300232027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352584 + ... + 2094496.

It is an arithmetic number, because the mean of its divisors is an integer number (94157419356).

Almost surely, 22131300232020 is an apocalyptic number.

2131300232020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131300232020 is an abundant number, since it is smaller than the sum of its proper divisors (2388255897068).

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

2131300232020 is a wasteful number, since it uses less digits than its factorization.

2131300232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742520 (or 1742518 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2131300232020 its reverse (202320031312), we get a palindrome (2333620263332).

The spelling of 2131300232020 in words is "two trillion, one hundred thirty-one billion, three hundred million, two hundred thirty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 131 262 467 524 655 934 1310 1868 2335 2620 4670 9340 61177 122354 244708 305885 611770 1223540 1741913 3483826 6967652 8709565 17419130 34838260 228190603 456381206 813473371 912762412 1140953015 1626946742 2281906030 3253893484 4067366855 4563812060 8134733710 16269467420 106565011601 213130023202 426260046404 532825058005 1065650116010 2131300232020