22301232131 has 32 divisors (see below), whose sum is σ = 23549460480. Its totient is φ = 21100262400.

The previous prime is 22301232127. The next prime is 22301232133. The reversal of 22301232131 is 13123210322.

It is a cyclic number.

It is not a de Polignac number, because 22301232131 - 2² = 22301232127 is a prime.

It is a super-2 number, since 2×22301232131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22301232133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66175595 + ... + 66175931.

It is an arithmetic number, because the mean of its divisors is an integer number (735920640).

Almost surely, 2^22301232131 is an apocalyptic number.

22301232131 is a deficient number, since it is larger than the sum of its proper divisors (1248228349).

22301232131 is a wasteful number, since it uses less digits than its factorization.

22301232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22301232131 its reverse (13123210322), we get a palindrome (35424442453).

The spelling of 22301232131 in words is "twenty-two billion, three hundred one million, two hundred thirty-two thousand, one hundred thirty-one".