22311321402 has 32 divisors (see below), whose sum is σ = 45584538624. Its totient is φ = 7276878000.

The previous prime is 22311321397. The next prime is 22311321421. The reversal of 22311321402 is 20412311322.

It is a super-3 number, since 3×22311321402³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1303077 + ... + 1320087.

It is an arithmetic number, because the mean of its divisors is an integer number (1424516832).

Almost surely, 2^22311321402 is an apocalyptic number.

22311321402 is an abundant number, since it is smaller than the sum of its proper divisors (23273217222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22311321402 is a wasteful number, since it uses less digits than its factorization.

22311321402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21714.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22311321402 its reverse (20412311322), we get a palindrome (42723632724).

The spelling of 22311321402 in words is "twenty-two billion, three hundred eleven million, three hundred twenty-one thousand, four hundred two".