23031385398 has 32 divisors (see below), whose sum is σ = 58492408320. Its totient is φ = 6580395720.

The previous prime is 23031385397. The next prime is 23031385441. The reversal of 23031385398 is 89358313032.

23031385398 is a `hidden beast` number, since 230 + 3 + 1 + 385 + 39 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031385397) 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, 30464418 + ... + 30465173.

It is an arithmetic number, because the mean of its divisors is an integer number (1827887760).

Almost surely, 2^23031385398 is an apocalyptic number.

23031385398 is an abundant number, since it is smaller than the sum of its proper divisors (35461022922).

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

23031385398 is a wasteful number, since it uses less digits than its factorization.

23031385398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60929609 (or 60929603 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 23031385398 in words is "twenty-three billion, thirty-one million, three hundred eighty-five thousand, three hundred ninety-eight".