23021999085 has 16 divisors (see below), whose sum is σ = 37199905920. Its totient is φ = 12156830400.

The previous prime is 23021999071. The next prime is 23021999137. The reversal of 23021999085 is 58099912032.

It is not a de Polignac number, because 23021999085 - 2⁵ = 23021999053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7596505 + ... + 7599534.

It is an arithmetic number, because the mean of its divisors is an integer number (2324994120).

Almost surely, 2^23021999085 is an apocalyptic number.

It is an amenable number.

23021999085 is a deficient number, since it is larger than the sum of its proper divisors (14177906835).

23021999085 is a wasteful number, since it uses less digits than its factorization.

23021999085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15196148.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 23021999085 in words is "twenty-three billion, twenty-one million, nine hundred ninety-nine thousand, eighty-five".