22431132402 has 32 divisors (see below), whose sum is σ = 52111676544. Its totient is φ = 6303830400.

The previous prime is 22431132401. The next prime is 22431132403. The reversal of 22431132402 is 20423113422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22431132401) and next prime (22431132403).

It is not an unprimeable number, because it can be changed into a prime (22431132401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4375099 + ... + 4380222.

It is an arithmetic number, because the mean of its divisors is an integer number (1628489892).

Almost surely, 2^22431132402 is an apocalyptic number.

22431132402 is an abundant number, since it is smaller than the sum of its proper divisors (29680544142).

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

22431132402 is a wasteful number, since it uses less digits than its factorization.

22431132402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755394.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 22431132402 its reverse (20423113422), we get a palindrome (42854245824).

The spelling of 22431132402 in words is "twenty-two billion, four hundred thirty-one million, one hundred thirty-two thousand, four hundred two".