31022102312 has 8 divisors (see below), whose sum is σ = 58166441850. Its totient is φ = 15511051152.

The previous prime is 31022102303. The next prime is 31022102329. The reversal of 31022102312 is 21320122013.

It can be written as a sum of positive squares in only one way, i.e., 20190704836 + 10831397476 = 142094^2 + 104074^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 1938881387 + ... + 1938881402.

Almost surely, 2^31022102312 is an apocalyptic number.

It is an amenable number.

31022102312 is a deficient number, since it is larger than the sum of its proper divisors (27144339538).

31022102312 is a wasteful number, since it uses less digits than its factorization.

31022102312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3877762795 (or 3877762791 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31022102312 its reverse (21320122013), we get a palindrome (52342224325).

The spelling of 31022102312 in words is "thirty-one billion, twenty-two million, one hundred two thousand, three hundred twelve".