23321111331 has 8 divisors (see below), whose sum is σ = 35536931584. Its totient is φ = 13326349320.

The previous prime is 23321111329. The next prime is 23321111353. The reversal of 23321111331 is 13311112332.

It is a happy number.

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

It is not a de Polignac number, because 23321111331 - 2¹ = 23321111329 is a prime.

It is a super-2 number, since 2×23321111331² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1110529111 = 23321111331 / (2 + 3 + 3 + 2 + 1 + 1 + 1 + 1 + 3 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 23321111298 and 23321111307.

It is not an unprimeable number, because it can be changed into a prime (23321111311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555264535 + ... + 555264576.

It is an arithmetic number, because the mean of its divisors is an integer number (4442116448).

Almost surely, 2^23321111331 is an apocalyptic number.

23321111331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23321111331 is a deficient number, since it is larger than the sum of its proper divisors (12215820253).

23321111331 is a wasteful number, since it uses less digits than its factorization.

23321111331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110529121.

The product of its digits is 324, while the sum is 21.

Adding to 23321111331 its reverse (13311112332), we get a palindrome (36632223663).

The spelling of 23321111331 in words is "twenty-three billion, three hundred twenty-one million, one hundred eleven thousand, three hundred thirty-one".