312132103031021 has 16 divisors (see below), whose sum is σ = 384173278099968. Its totient is φ = 246954791952000.

The previous prime is 312132103031009. The next prime is 312132103031029. The reversal of 312132103031021 is 120130301231213.

It is a cyclic number.

It is not a de Polignac number, because 312132103031021 - 2³⁰ = 312131029289197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312132103031029) by changing a digit.

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, 44432600 + ... + 50975681.

It is an arithmetic number, because the mean of its divisors is an integer number (24010829881248).

Almost surely, 2^{312132103031021} is an apocalyptic number.

It is an amenable number.

312132103031021 is a deficient number, since it is larger than the sum of its proper divisors (72041175068947).

312132103031021 is a wasteful number, since it uses less digits than its factorization.

312132103031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95444252.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 312132103031021 its reverse (120130301231213), we get a palindrome (432262404262234).

The spelling of 312132103031021 in words is "three hundred twelve trillion, one hundred thirty-two billion, one hundred three million, thirty-one thousand, twenty-one".