23130120015 has 48 divisors (see below), whose sum is σ = 42477177600. Its totient is φ = 11603137536.

The previous prime is 23130119939. The next prime is 23130120037. The reversal of 23130120015 is 51002103132.

It is not a de Polignac number, because 23130120015 - 2⁹ = 23130119503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23130120015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1337041 + ... + 1354229.

It is an arithmetic number, because the mean of its divisors is an integer number (884941200).

Almost surely, 2^23130120015 is an apocalyptic number.

23130120015 is a deficient number, since it is larger than the sum of its proper divisors (19347057585).

23130120015 is a wasteful number, since it uses less digits than its factorization.

23130120015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18976 (or 18973 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 23130120015 its reverse (51002103132), we get a palindrome (74132223147).

The spelling of 23130120015 in words is "twenty-three billion, one hundred thirty million, one hundred twenty thousand, fifteen".