23131435302516 has 48 divisors (see below), whose sum is σ = 55109692310400. Its totient is φ = 7549825907712.

The previous prime is 23131435302511. The next prime is 23131435302517. The reversal of 23131435302516 is 61520353413132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131435302511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105029061 + ... + 105249068.

It is an arithmetic number, because the mean of its divisors is an integer number (1148118589800).

Almost surely, 2^{23131435302516} is an apocalyptic number.

It is an amenable number.

23131435302516 is an abundant number, since it is smaller than the sum of its proper divisors (31978257007884).

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

23131435302516 is a wasteful number, since it uses less digits than its factorization.

23131435302516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210278328 (or 210278326 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 39.

Adding to 23131435302516 its reverse (61520353413132), we get a palindrome (84651788715648).

The spelling of 23131435302516 in words is "twenty-three trillion, one hundred thirty-one billion, four hundred thirty-five million, three hundred two thousand, five hundred sixteen".