23031321331 has 8 divisors (see below), whose sum is σ = 24059798784. Its totient is φ = 22005103560.

The previous prime is 23031321281. The next prime is 23031321337. The reversal of 23031321331 is 13312313032.

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 23031321331 - 2¹⁵ = 23031288563 is a prime.

It is a super-2 number, since 2×23031321331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23031321337) 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, 544065 + ... + 584866.

It is an arithmetic number, because the mean of its divisors is an integer number (3007474848).

Almost surely, 2^23031321331 is an apocalyptic number.

23031321331 is a deficient number, since it is larger than the sum of its proper divisors (1028477453).

23031321331 is a wasteful number, since it uses less digits than its factorization.

23031321331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129841.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23031321331 its reverse (13312313032), we get a palindrome (36343634363).

The spelling of 23031321331 in words is "twenty-three billion, thirty-one million, three hundred twenty-one thousand, three hundred thirty-one".