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131023331130 = 2357161513301
BaseRepresentation
bin111101000000110011…
…0010101111100111010
3110112012020111212000210
41322001212111330322
54121313433044010
6140105152411550
712315610640016
oct1720146257472
9415166455023
10131023331130
1150626288a3a
1221487546bb6
13c480bc0403
1464ad36b546
15361cb02b20
hex1e81995f3a

131023331130 has 32 divisors (see below), whose sum is σ = 318884957568. Its totient is φ = 34447448000.

The previous prime is 131023331027. The next prime is 131023331137. The reversal of 131023331130 is 31133320131.

It is a super-2 number, since 2×1310233311302 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131023331097 and 131023331106.

It is not an unprimeable number, because it can be changed into a prime (131023331137) 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, 30754521 + ... + 30758780.

It is an arithmetic number, because the mean of its divisors is an integer number (9965154924).

Almost surely, 2131023331130 is an apocalyptic number.

131023331130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131023331130 is an abundant number, since it is smaller than the sum of its proper divisors (187861626438).

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

131023331130 is a wasteful number, since it uses less digits than its factorization.

131023331130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61513382.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 131023331130 its reverse (31133320131), we get a palindrome (162156651261).

The spelling of 131023331130 in words is "one hundred thirty-one billion, twenty-three million, three hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 61513301 123026602 184539903 307566505 369079806 615133010 922699515 1845399030 4367444371 8734888742 13102333113 21837221855 26204666226 43674443710 65511665565 131023331130