23131251502 has 8 divisors (see below), whose sum is σ = 34697880000. Its totient is φ = 11565291504.

The previous prime is 23131251487. The next prime is 23131251503. The reversal of 23131251502 is 20515213132.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131251503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69127 + ... + 225922.

It is an arithmetic number, because the mean of its divisors is an integer number (4337235000).

Almost surely, 2^23131251502 is an apocalyptic number.

23131251502 is a deficient number, since it is larger than the sum of its proper divisors (11566628498).

23131251502 is a wasteful number, since it uses less digits than its factorization.

23131251502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334250.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 23131251502 its reverse (20515213132), we get a palindrome (43646464634).

The spelling of 23131251502 in words is "twenty-three billion, one hundred thirty-one million, two hundred fifty-one thousand, five hundred two".