131231135210 has 16 divisors (see below), whose sum is σ = 269961192576. Its totient is φ = 44993532048.

The previous prime is 131231135201. The next prime is 131231135219. The reversal of 131231135210 is 12531132131.

It is an interprime number because it is at equal distance from previous prime (131231135201) and next prime (131231135219).

It is a super-2 number, since 2×131231135210² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131231135219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 937365182 + ... + 937365321.

It is an arithmetic number, because the mean of its divisors is an integer number (16872574536).

Almost surely, 2^131231135210 is an apocalyptic number.

131231135210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131231135210 is an abundant number, since it is smaller than the sum of its proper divisors (138730057366).

131231135210 is a wasteful number, since it uses less digits than its factorization.

131231135210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874730517.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 131231135210 its reverse (12531132131), we get a palindrome (143762267341).

The spelling of 131231135210 in words is "one hundred thirty-one billion, two hundred thirty-one million, one hundred thirty-five thousand, two hundred ten".