22311031323 has 8 divisors (see below), whose sum is σ = 33997762048. Its totient is φ = 12749160744.

The previous prime is 22311031313. The next prime is 22311031331. The reversal of 22311031323 is 32313011322.

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

It is not a de Polignac number, because 22311031323 - 2¹³ = 22311023131 is a prime.

It is a super-3 number, since 3×22311031323³ (a number of 32 digits) contains 333 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: 1062430063 = 22311031323 / (2 + 2 + 3 + 1 + 1 + 0 + 3 + 1 + 3 + 2 + 3).

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 22311031323.

It is not an unprimeable number, because it can be changed into a prime (22311031313) 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, 531215011 + ... + 531215052.

It is an arithmetic number, because the mean of its divisors is an integer number (4249720256).

Almost surely, 2^22311031323 is an apocalyptic number.

22311031323 is a deficient number, since it is larger than the sum of its proper divisors (11686730725).

22311031323 is a wasteful number, since it uses less digits than its factorization.

22311031323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062430073.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 22311031323 its reverse (32313011322), we get a palindrome (54624042645).

The spelling of 22311031323 in words is "twenty-two billion, three hundred eleven million, thirty-one thousand, three hundred twenty-three".