23121076671 has 80 divisors (see below), whose sum is σ = 43377396480. Its totient is φ = 11922837120.

The previous prime is 23121076633. The next prime is 23121076679. The reversal of 23121076671 is 17667012132.

It is a happy number.

It is not a de Polignac number, because 23121076671 - 2⁶ = 23121076607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121076679) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 840940 + ... + 867998.

It is an arithmetic number, because the mean of its divisors is an integer number (542217456).

Almost surely, 2^23121076671 is an apocalyptic number.

23121076671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23121076671 is a deficient number, since it is larger than the sum of its proper divisors (20256319809).

23121076671 is a wasteful number, since it uses less digits than its factorization.

23121076671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27226 (or 27217 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The spelling of 23121076671 in words is "twenty-three billion, one hundred twenty-one million, seventy-six thousand, six hundred seventy-one".