31344521037 has 16 divisors (see below), whose sum is σ = 43524000000. Its totient is φ = 20040367424.

The previous prime is 31344521023. The next prime is 31344521053. The reversal of 31344521037 is 73012544313.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31344521037 - 2¹⁵ = 31344488269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31344520989 and 31344521007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344521057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1196037 + ... + 1221962.

It is an arithmetic number, because the mean of its divisors is an integer number (2720250000).

Almost surely, 2^31344521037 is an apocalyptic number.

It is an amenable number.

31344521037 is a deficient number, since it is larger than the sum of its proper divisors (12179478963).

31344521037 is a wasteful number, since it uses less digits than its factorization.

31344521037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418180.

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 31344521037 in words is "thirty-one billion, three hundred forty-four million, five hundred twenty-one thousand, thirty-seven".