22313031131 has 4 divisors (see below), whose sum is σ = 23625562392. Its totient is φ = 21000499872.

The previous prime is 22313031127. The next prime is 22313031133. The reversal of 22313031131 is 13113031322.

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

It is a cyclic number.

It is not a de Polignac number, because 22313031131 - 2² = 22313031127 is a prime.

It is a super-3 number, since 3×22313031131³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22313031133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656265605 + ... + 656265638.

It is an arithmetic number, because the mean of its divisors is an integer number (5906390598).

Almost surely, 2^22313031131 is an apocalyptic number.

22313031131 is a deficient number, since it is larger than the sum of its proper divisors (1312531261).

22313031131 is a wasteful number, since it uses less digits than its factorization.

22313031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312531260.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 22313031131 its reverse (13113031322), we get a palindrome (35426062453).

The spelling of 22313031131 in words is "twenty-two billion, three hundred thirteen million, thirty-one thousand, one hundred thirty-one".