31203101108 has 12 divisors (see below), whose sum is σ = 54651206820. Its totient is φ = 15588470592.

The previous prime is 31203101099. The next prime is 31203101117. The reversal of 31203101108 is 80110130213.

It is an interprime number because it is at equal distance from previous prime (31203101099) and next prime (31203101117).

It can be written as a sum of positive squares in 2 ways, for example, as 19315996324 + 11887104784 = 138982^2 + 109028^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31203101108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3264623 + ... + 3274166.

It is an arithmetic number, because the mean of its divisors is an integer number (4554267235).

Almost surely, 2^31203101108 is an apocalyptic number.

It is an amenable number.

31203101108 is a deficient number, since it is larger than the sum of its proper divisors (23448105712).

31203101108 is a wasteful number, since it uses less digits than its factorization.

31203101108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6539986 (or 6539984 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 31203101108 in words is "thirty-one billion, two hundred three million, one hundred one thousand, one hundred eight".