31300005502 has 16 divisors (see below), whose sum is σ = 47101301280. Its totient is φ = 15599639808.

The previous prime is 31300005491. The next prime is 31300005511. The reversal of 31300005502 is 20550000313.

It is a self number, because there is not a number n which added to its sum of digits gives 31300005502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946918 + ... + 979414.

It is an arithmetic number, because the mean of its divisors is an integer number (2943831330).

Almost surely, 2^31300005502 is an apocalyptic number.

31300005502 is a deficient number, since it is larger than the sum of its proper divisors (15801295778).

31300005502 is a wasteful number, since it uses less digits than its factorization.

31300005502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34035.

The product of its (nonzero) digits is 450, while the sum is 19.

Adding to 31300005502 its reverse (20550000313), we get a palindrome (51850005815).

The spelling of 31300005502 in words is "thirty-one billion, three hundred million, five thousand, five hundred two".