23000002520 has 32 divisors (see below), whose sum is σ = 56454552720. Its totient is φ = 8363637120.

The previous prime is 23000002513. The next prime is 23000002541. The reversal of 23000002520 is 2520000032.

It is a junction number, because it is equal to n+sod(n) for n = 23000002495 and 23000002504.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26135927 + ... + 26136806.

Almost surely, 2^23000002520 is an apocalyptic number.

23000002520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23000002520 is an abundant number, since it is smaller than the sum of its proper divisors (33454550200).

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

23000002520 is a wasteful number, since it uses less digits than its factorization.

23000002520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52272755 (or 52272751 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 14.

Adding to 23000002520 its reverse (2520000032), we get a palindrome (25520002552).

The spelling of 23000002520 in words is "twenty-three billion, two thousand, five hundred twenty".