31497979603 has 8 divisors (see below), whose sum is σ = 31697490528. Its totient is φ = 31299073344.

The previous prime is 31497979577. The next prime is 31497979649. The reversal of 31497979603 is 30697979413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31497979603 - 2⁹ = 31497979091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31497979103) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 46426 + ... + 255247.

It is an arithmetic number, because the mean of its divisors is an integer number (3962186316).

Almost surely, 2^31497979603 is an apocalyptic number.

31497979603 is a deficient number, since it is larger than the sum of its proper divisors (199510925).

31497979603 is a wasteful number, since it uses less digits than its factorization.

31497979603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302333.

The product of its (nonzero) digits is 7715736, while the sum is 58.

The spelling of 31497979603 in words is "thirty-one billion, four hundred ninety-seven million, nine hundred seventy-nine thousand, six hundred three".