23003512540 has 48 divisors (see below), whose sum is σ = 48733977600. Its totient is φ = 9120287232.

The previous prime is 23003512531. The next prime is 23003512547. The reversal of 23003512540 is 4521530032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23003512547) 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, 3117976 + ... + 3125344.

It is an arithmetic number, because the mean of its divisors is an integer number (1015291200).

Almost surely, 2^23003512540 is an apocalyptic number.

23003512540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003512540 is an abundant number, since it is smaller than the sum of its proper divisors (25730465060).

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

23003512540 is a wasteful number, since it uses less digits than its factorization.

23003512540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8734 (or 8732 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The spelling of 23003512540 in words is "twenty-three billion, three million, five hundred twelve thousand, five hundred forty".