100313121100 has 36 divisors (see below), whose sum is σ = 217849945600. Its totient is φ = 40093824960.

The previous prime is 100313121079. The next prime is 100313121137. The reversal of 100313121100 is 1121313001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264255 + ... + 520054.

Almost surely, 2^100313121100 is an apocalyptic number.

100313121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100313121100 is an abundant number, since it is smaller than the sum of its proper divisors (117536824500).

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

100313121100 is a wasteful number, since it uses less digits than its factorization.

100313121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785602 (or 785595 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 100313121100 its reverse (1121313001), we get a palindrome (101434434101).

The spelling of 100313121100 in words is "one hundred billion, three hundred thirteen million, one hundred twenty-one thousand, one hundred".