31008030988 has 12 divisors (see below), whose sum is σ = 59197150152. Its totient is φ = 14094559520.

The previous prime is 31008030983. The next prime is 31008031057. The reversal of 31008030988 is 88903080013.

It is a super-2 number, since 2×31008030988² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31008030988.

It is not an unprimeable number, because it can be changed into a prime (31008030983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352363945 + ... + 352364032.

It is an arithmetic number, because the mean of its divisors is an integer number (4933095846).

Almost surely, 2^31008030988 is an apocalyptic number.

It is an amenable number.

31008030988 is a deficient number, since it is larger than the sum of its proper divisors (28189119164).

31008030988 is a wasteful number, since it uses less digits than its factorization.

31008030988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704727992 (or 704727990 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 31008030988 in words is "thirty-one billion, eight million, thirty thousand, nine hundred eighty-eight".