23081157345 has 16 divisors (see below), whose sum is σ = 38873528640. Its totient is φ = 11662058304.

The previous prime is 23081157311. The next prime is 23081157347. The reversal of 23081157345 is 54375118032.

It is a happy number.

It is not a de Polignac number, because 23081157345 - 2¹⁶ = 23081091809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23081157347) 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, 40492974 + ... + 40493543.

It is an arithmetic number, because the mean of its divisors is an integer number (2429595540).

Almost surely, 2^23081157345 is an apocalyptic number.

It is an amenable number.

23081157345 is a deficient number, since it is larger than the sum of its proper divisors (15792371295).

23081157345 is a wasteful number, since it uses less digits than its factorization.

23081157345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80986544.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 23081157345 in words is "twenty-three billion, eighty-one million, one hundred fifty-seven thousand, three hundred forty-five".