103312031100 has 72 divisors (see below), whose sum is σ = 316499461488. Its totient is φ = 25929292800.

The previous prime is 103312031089. The next prime is 103312031113. The reversal of 103312031100 is 1130213301.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 103312031100.

It is a congruent number.

It is an unprimeable number.

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, 10123531 + ... + 10133730.

It is an arithmetic number, because the mean of its divisors is an integer number (4395825854).

Almost surely, 2^103312031100 is an apocalyptic number.

103312031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103312031100 is an abundant number, since it is smaller than the sum of its proper divisors (213187430388).

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

103312031100 is a wasteful number, since it uses less digits than its factorization.

103312031100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20257295 (or 20257288 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 103312031100 its reverse (1130213301), we get a palindrome (104442244401).

The spelling of 103312031100 in words is "one hundred three billion, three hundred twelve million, thirty-one thousand, one hundred".