23121036475 has 12 divisors (see below), whose sum is σ = 28672235296. Its totient is φ = 18495442080.

The previous prime is 23121036467. The next prime is 23121036481. The reversal of 23121036475 is 57463012132.

It is not a de Polignac number, because 23121036475 - 2³ = 23121036467 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23121036475.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424654 + ... + 475996.

Almost surely, 2^23121036475 is an apocalyptic number.

23121036475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23121036475 is a deficient number, since it is larger than the sum of its proper divisors (5551198821).

23121036475 is a wasteful number, since it uses less digits than its factorization.

23121036475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69366 (or 69361 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 23121036475 in words is "twenty-three billion, one hundred twenty-one million, thirty-six thousand, four hundred seventy-five".