23131103220402 has 8 divisors (see below), whose sum is σ = 46262206440816. Its totient is φ = 7710367740132.

The previous prime is 23131103220397. The next prime is 23131103220427. The reversal of 23131103220402 is 20402230113132.

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

23131103220402 is an admirable 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, 1927591935028 + ... + 1927591935039.

It is an arithmetic number, because the mean of its divisors is an integer number (5782775805102).

Almost surely, 2^{23131103220402} is an apocalyptic number.

23131103220402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23131103220402 is a wasteful number, since it uses less digits than its factorization.

23131103220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3855183870072.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 23131103220402 its reverse (20402230113132), we get a palindrome (43533333333534).

The spelling of 23131103220402 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred three million, two hundred twenty thousand, four hundred two".