31330022132 has 6 divisors (see below), whose sum is σ = 54827538738. Its totient is φ = 15665011064.

The previous prime is 31330022099. The next prime is 31330022149. The reversal of 31330022132 is 23122003313.

It can be written as a sum of positive squares in only one way, i.e., 30193927696 + 1136094436 = 173764^2 + 33706^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3916252763 + ... + 3916252770.

It is an arithmetic number, because the mean of its divisors is an integer number (9137923123).

Almost surely, 2^31330022132 is an apocalyptic number.

It is an amenable number.

31330022132 is a deficient number, since it is larger than the sum of its proper divisors (23497516606).

31330022132 is a wasteful number, since it uses less digits than its factorization.

31330022132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832505537 (or 7832505535 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31330022132 its reverse (23122003313), we get a palindrome (54452025445).

The spelling of 31330022132 in words is "thirty-one billion, three hundred thirty million, twenty-two thousand, one hundred thirty-two".