23210069391 has 12 divisors (see below), whose sum is σ = 33528561768. Its totient is φ = 15472038384.

The previous prime is 23210069321. The next prime is 23210069471. The reversal of 23210069391 is 19396001232.

It is a happy number.

It is not a de Polignac number, because 23210069391 - 2⁷ = 23210069263 is a prime.

It is a super-2 number, since 2×23210069391² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23210069321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4161 + ... + 215493.

It is an arithmetic number, because the mean of its divisors is an integer number (2794046814).

Almost surely, 2^23210069391 is an apocalyptic number.

23210069391 is a deficient number, since it is larger than the sum of its proper divisors (10318492377).

23210069391 is a wasteful number, since it uses less digits than its factorization.

23210069391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223542 (or 223539 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The spelling of 23210069391 in words is "twenty-three billion, two hundred ten million, sixty-nine thousand, three hundred ninety-one".