23430457513520 has 20 divisors (see below), whose sum is σ = 54475813719120. Its totient is φ = 9372183005376.

The previous prime is 23430457513511. The next prime is 23430457513549. The reversal of 23430457513520 is 2531575403432.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146440359380 + ... + 146440359539.

It is an arithmetic number, because the mean of its divisors is an integer number (2723790685956).

Almost surely, 2^{23430457513520} is an apocalyptic number.

23430457513520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23430457513520 is an abundant number, since it is smaller than the sum of its proper divisors (31045356205600).

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

23430457513520 is a wasteful number, since it uses less digits than its factorization.

23430457513520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292880718932 (or 292880718926 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 44.

The spelling of 23430457513520 in words is "twenty-three trillion, four hundred thirty billion, four hundred fifty-seven million, five hundred thirteen thousand, five hundred twenty".