31103321013100 has 72 divisors (see below), whose sum is σ = 77476043715840. Its totient is φ = 10617017766720.

The previous prime is 31103321013077. The next prime is 31103321013173. The reversal of 31103321013100 is 131012330113.

It is a super-2 number, since 2×31103321013100² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97711840 + ... + 98029639.

It is an arithmetic number, because the mean of its divisors is an integer number (1076056162720).

Almost surely, 2^{31103321013100} is an apocalyptic number.

It is an amenable number.

31103321013100 is an abundant number, since it is smaller than the sum of its proper divisors (46372722702740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31103321013100 is a wasteful number, since it uses less digits than its factorization.

31103321013100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195741727 (or 195741720 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31103321013100 its reverse (131012330113), we get a palindrome (31234333343213).

The spelling of 31103321013100 in words is "thirty-one trillion, one hundred three billion, three hundred twenty-one million, thirteen thousand, one hundred".