31030303090 has 16 divisors (see below), whose sum is σ = 55862421120. Its totient is φ = 12410371120.

The previous prime is 31030303069. The next prime is 31030303091. The reversal of 31030303090 is 9030303013.

It is not an unprimeable number, because it can be changed into a prime (31030303091) 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, 143050 + ... + 287269.

It is an arithmetic number, because the mean of its divisors is an integer number (3491401320).

Almost surely, 2^31030303090 is an apocalyptic number.

31030303090 is a deficient number, since it is larger than the sum of its proper divisors (24832118030).

31030303090 is a wasteful number, since it uses less digits than its factorization.

31030303090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437537.

The product of its (nonzero) digits is 729, while the sum is 22.

The spelling of 31030303090 in words is "thirty-one billion, thirty million, three hundred three thousand, ninety".