23081992021 has 8 divisors (see below), whose sum is σ = 25201872288. Its totient is φ = 20965698000.

The previous prime is 23081992001. The next prime is 23081992027. The reversal of 23081992021 is 12029918032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23081992021 - 2¹³ = 23081983829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23081992027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883090 + ... + 908851.

It is an arithmetic number, because the mean of its divisors is an integer number (3150234036).

Almost surely, 2^23081992021 is an apocalyptic number.

It is an amenable number.

23081992021 is a deficient number, since it is larger than the sum of its proper divisors (2119880267).

23081992021 is a wasteful number, since it uses less digits than its factorization.

23081992021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793123.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 23081992021 in words is "twenty-three billion, eighty-one million, nine hundred ninety-two thousand, twenty-one".