131231322103212 has 60 divisors (see below), whose sum is σ = 352336614414400. Its totient is φ = 42561509867424.

The previous prime is 131231322103199. The next prime is 131231322103223. The reversal of 131231322103212 is 212301223132131.

131231322103212 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 3 + 1 + 322 + 10 + 321 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5473433212 + ... + 5473457187.

Almost surely, 2^{131231322103212} is an apocalyptic number.

131231322103212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131231322103212 is an abundant number, since it is smaller than the sum of its proper divisors (221105292311188).

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

131231322103212 is a wasteful number, since it uses less digits than its factorization.

131231322103212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10946890452 (or 10946890441 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 131231322103212 its reverse (212301223132131), we get a palindrome (343532545235343).

The spelling of 131231322103212 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, three hundred twenty-two million, one hundred three thousand, two hundred twelve".