31011323132 has 6 divisors (see below), whose sum is σ = 54269815488. Its totient is φ = 15505661564.

The previous prime is 31011323113. The next prime is 31011323141. The reversal of 31011323132 is 23132311013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3876415388 + ... + 3876415395.

It is an arithmetic number, because the mean of its divisors is an integer number (9044969248).

Almost surely, 2^31011323132 is an apocalyptic number.

It is an amenable number.

31011323132 is a deficient number, since it is larger than the sum of its proper divisors (23258492356).

31011323132 is a wasteful number, since it uses less digits than its factorization.

31011323132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7752830787 (or 7752830785 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31011323132 its reverse (23132311013), we get a palindrome (54143634145).

The spelling of 31011323132 in words is "thirty-one billion, eleven million, three hundred twenty-three thousand, one hundred thirty-two".