31344531152 has 30 divisors (see below), whose sum is σ = 66752846034. Its totient is φ = 14247513280.

The previous prime is 31344531151. The next prime is 31344531191. The reversal of 31344531152 is 25113544313.

It can be written as a sum of positive squares in only one way, i.e., 25286088256 + 6058442896 = 159016^2 + 77836^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344531151) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 8093243 + ... + 8097114.

Almost surely, 2^31344531152 is an apocalyptic number.

It is an amenable number.

31344531152 is an abundant number, since it is smaller than the sum of its proper divisors (35408314882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31344531152 is a wasteful number, since it uses less digits than its factorization.

31344531152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16190387 (or 16190370 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The spelling of 31344531152 in words is "thirty-one billion, three hundred forty-four million, five hundred thirty-one thousand, one hundred fifty-two".