31323233132 has 6 divisors (see below), whose sum is σ = 54815657988. Its totient is φ = 15661616564.

The previous prime is 31323233107. The next prime is 31323233173. The reversal of 31323233132 is 23133232313.

It is a happy number.

It is a super-2 number, since 2×31323233132² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3915404138 + ... + 3915404145.

It is an arithmetic number, because the mean of its divisors is an integer number (9135942998).

Almost surely, 2^31323233132 is an apocalyptic number.

It is an amenable number.

31323233132 is a deficient number, since it is larger than the sum of its proper divisors (23492424856).

31323233132 is a wasteful number, since it uses less digits than its factorization.

31323233132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7830808287 (or 7830808285 counting only the distinct ones).

The product of its digits is 5832, while the sum is 26.

Adding to 31323233132 its reverse (23133232313), we get a palindrome (54456465445).

The spelling of 31323233132 in words is "thirty-one billion, three hundred twenty-three million, two hundred thirty-three thousand, one hundred thirty-two".