23131134421402 has 8 divisors (see below), whose sum is σ = 39653373293856. Its totient is φ = 9913343323452.

The previous prime is 23131134421393. The next prime is 23131134421427. The reversal of 23131134421402 is 20412443113132.

It is a happy number.

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

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, 826111943608 + ... + 826111943635.

It is an arithmetic number, because the mean of its divisors is an integer number (4956671661732).

Almost surely, 2^{23131134421402} is an apocalyptic number.

23131134421402 is a deficient number, since it is larger than the sum of its proper divisors (16522238872454).

23131134421402 is a wasteful number, since it uses less digits than its factorization.

23131134421402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652223887252.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 23131134421402 its reverse (20412443113132), we get a palindrome (43543577534534).

The spelling of 23131134421402 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty-four million, four hundred twenty-one thousand, four hundred two".