20312131430102 has 8 divisors (see below), whose sum is σ = 30528770103216. Its totient is φ = 10135874729032.

The previous prime is 20312131430053. The next prime is 20312131430111. The reversal of 20312131430102 is 20103413121302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10095491753 + ... + 10095493764.

It is an arithmetic number, because the mean of its divisors is an integer number (3816096262902).

Almost surely, 2^{20312131430102} is an apocalyptic number.

20312131430102 is a deficient number, since it is larger than the sum of its proper divisors (10216638673114).

20312131430102 is a wasteful number, since it uses less digits than its factorization.

20312131430102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20190986022.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20312131430102 its reverse (20103413121302), we get a palindrome (40415544551404).

The spelling of 20312131430102 in words is "twenty trillion, three hundred twelve billion, one hundred thirty-one million, four hundred thirty thousand, one hundred two".