23305199397 has 32 divisors (see below), whose sum is σ = 32825399040. Its totient is φ = 14677977600.

The previous prime is 23305199387. The next prime is 23305199431. The reversal of 23305199397 is 79399150332.

It is not a de Polignac number, because 23305199397 - 2²⁸ = 23036763941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23305199347) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7987983 + ... + 7990899.

It is an arithmetic number, because the mean of its divisors is an integer number (1025793720).

Almost surely, 2^23305199397 is an apocalyptic number.

It is an amenable number.

23305199397 is a deficient number, since it is larger than the sum of its proper divisors (9520199643).

23305199397 is a wasteful number, since it uses less digits than its factorization.

23305199397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333.

The product of its (nonzero) digits is 1377810, while the sum is 51.

The spelling of 23305199397 in words is "twenty-three billion, three hundred five million, one hundred ninety-nine thousand, three hundred ninety-seven".