31304000403 has 24 divisors (see below), whose sum is σ = 48714251040. Its totient is φ = 19256428800.

The previous prime is 31304000363. The next prime is 31304000407. The reversal of 31304000403 is 30400040313.

It is not a de Polignac number, because 31304000403 - 2²¹ = 31301903251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31304000407) 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 23 ways as a sum of consecutive naturals, for example, 253978 + ... + 356528.

It is an arithmetic number, because the mean of its divisors is an integer number (2029760460).

Almost surely, 2^31304000403 is an apocalyptic number.

31304000403 is a deficient number, since it is larger than the sum of its proper divisors (17410250637).

31304000403 is a wasteful number, since it uses less digits than its factorization.

31304000403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105179 (or 105176 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 31304000403 its reverse (30400040313), we get a palindrome (61704040716).

The spelling of 31304000403 in words is "thirty-one billion, three hundred four million, four hundred three", and thus it is an aban number.