31522340132 has 12 divisors (see below), whose sum is σ = 55288622256. Its totient is φ = 15725590920.

The previous prime is 31522340119. The next prime is 31522340137. The reversal of 31522340132 is 23104322513.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31522340137) 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, 8892794 + ... + 8896337.

It is an arithmetic number, because the mean of its divisors is an integer number (4607385188).

Almost surely, 2^31522340132 is an apocalyptic number.

It is an amenable number.

31522340132 is a deficient number, since it is larger than the sum of its proper divisors (23766282124).

31522340132 is a wasteful number, since it uses less digits than its factorization.

31522340132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17789578 (or 17789576 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 31522340132 its reverse (23104322513), we get a palindrome (54626662645).

The spelling of 31522340132 in words is "thirty-one billion, five hundred twenty-two million, three hundred forty thousand, one hundred thirty-two".