131211210031044 has 48 divisors (see below), whose sum is σ = 359683876453440. Its totient is φ = 36702436371840.

The previous prime is 131211210031007. The next prime is 131211210031169. The reversal of 131211210031044 is 440130012112131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38231702839 + ... + 38231706270.

It is an arithmetic number, because the mean of its divisors is an integer number (7493414092780).

Almost surely, 2^{131211210031044} is an apocalyptic number.

It is an amenable number.

131211210031044 is an abundant number, since it is smaller than the sum of its proper divisors (228472666422396).

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

131211210031044 is a wasteful number, since it uses less digits than its factorization.

131211210031044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76463409140 (or 76463409138 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 131211210031044 its reverse (440130012112131), we get a palindrome (571341222143175).

The spelling of 131211210031044 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred ten million, thirty-one thousand, forty-four".