31305949037 has 16 divisors (see below), whose sum is σ = 35691573888. Its totient is φ = 27180732480.

The previous prime is 31305949009. The next prime is 31305949063. The reversal of 31305949037 is 73094950313.

It is a happy number.

It is not a de Polignac number, because 31305949037 - 2¹⁰ = 31305948013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31305949237) 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, 70463 + ... + 259955.

It is an arithmetic number, because the mean of its divisors is an integer number (2230723368).

Almost surely, 2^31305949037 is an apocalyptic number.

It is an amenable number.

31305949037 is a deficient number, since it is larger than the sum of its proper divisors (4385624851).

31305949037 is a wasteful number, since it uses less digits than its factorization.

31305949037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190180.

The product of its (nonzero) digits is 306180, while the sum is 44.

The spelling of 31305949037 in words is "thirty-one billion, three hundred five million, nine hundred forty-nine thousand, thirty-seven".