23012345251 has 12 divisors (see below), whose sum is σ = 26964868248. Its totient is φ = 19580884512.

The previous prime is 23012345243. The next prime is 23012345261. The reversal of 23012345251 is 15254321032.

It is not a de Polignac number, because 23012345251 - 2³ = 23012345243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23012345201) by changing a digit.

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, 1707301 + ... + 1720726.

It is an arithmetic number, because the mean of its divisors is an integer number (2247072354).

Almost surely, 2^23012345251 is an apocalyptic number.

23012345251 is a deficient number, since it is larger than the sum of its proper divisors (3952522997).

23012345251 is a wasteful number, since it uses less digits than its factorization.

23012345251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428178 (or 3428171 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 23012345251 its reverse (15254321032), we get a palindrome (38266666283).

The spelling of 23012345251 in words is "twenty-three billion, twelve million, three hundred forty-five thousand, two hundred fifty-one".