23312213081 has 8 divisors (see below), whose sum is σ = 24394015944. Its totient is φ = 22254186240.

The previous prime is 23312213069. The next prime is 23312213087. The reversal of 23312213081 is 18031221332.

It can be written as a sum of positive squares in 4 ways, for example, as 13904183056 + 9408030025 = 117916^2 + 96995^2 .

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 23312213081 - 2¹⁴ = 23312196697 is a prime.

It is a super-2 number, since 2×23312213081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23312213081.

It is not an unprimeable number, because it can be changed into a prime (23312213087) 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, 5942000 + ... + 5945921.

It is an arithmetic number, because the mean of its divisors is an integer number (3049251993).

Almost surely, 2^23312213081 is an apocalyptic number.

It is an amenable number.

23312213081 is a deficient number, since it is larger than the sum of its proper divisors (1081802863).

23312213081 is a wasteful number, since it uses less digits than its factorization.

23312213081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11888011.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 23312213081 in words is "twenty-three billion, three hundred twelve million, two hundred thirteen thousand, eighty-one".