20023312858 has 16 divisors (see below), whose sum is σ = 31032944640. Its totient is φ = 9679604400.

The previous prime is 20023312853. The next prime is 20023312879. The reversal of 20023312858 is 85821332002.

It is not an unprimeable number, because it can be changed into a prime (20023312853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84778 + ... + 217333.

It is an arithmetic number, because the mean of its divisors is an integer number (1939559040).

Almost surely, 2^20023312858 is an apocalyptic number.

20023312858 is a deficient number, since it is larger than the sum of its proper divisors (11009631782).

20023312858 is a wasteful number, since it uses less digits than its factorization.

20023312858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303213.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 20023312858 in words is "twenty billion, twenty-three million, three hundred twelve thousand, eight hundred fifty-eight".