23321023331 has 4 divisors (see below), whose sum is σ = 23321936592. Its totient is φ = 23320110072.

The previous prime is 23321023309. The next prime is 23321023343. The reversal of 23321023331 is 13332012332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23321023331 is a prime.

It is a super-2 number, since 2×23321023331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23321023297 and 23321023306.

It is not an unprimeable number, because it can be changed into a prime (23321023381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417191 + ... + 469776.

It is an arithmetic number, because the mean of its divisors is an integer number (5830484148).

Almost surely, 2^23321023331 is an apocalyptic number.

23321023331 is a deficient number, since it is larger than the sum of its proper divisors (913261).

23321023331 is an equidigital number, since it uses as much as digits as its factorization.

23321023331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913260.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23321023331 its reverse (13332012332), we get a palindrome (36653035663).

The spelling of 23321023331 in words is "twenty-three billion, three hundred twenty-one million, twenty-three thousand, three hundred thirty-one".