23242602721 has 16 divisors (see below), whose sum is σ = 25468632000. Its totient is φ = 21079562688.

The previous prime is 23242602707. The next prime is 23242602743. The reversal of 23242602721 is 12720624232.

It is a cyclic number.

It is not a de Polignac number, because 23242602721 - 2²¹ = 23240505569 is a prime.

It is a super-3 number, since 3×23242602721³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23242692721) 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, 1602715 + ... + 1617151.

It is an arithmetic number, because the mean of its divisors is an integer number (1591789500).

Almost surely, 2^23242602721 is an apocalyptic number.

It is an amenable number.

23242602721 is a deficient number, since it is larger than the sum of its proper divisors (2226029279).

23242602721 is a wasteful number, since it uses less digits than its factorization.

23242602721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16608.

The product of its (nonzero) digits is 16128, while the sum is 31.

The spelling of 23242602721 in words is "twenty-three billion, two hundred forty-two million, six hundred two thousand, seven hundred twenty-one".