121300031100 has 72 divisors (see below), whose sum is σ = 356714943088. Its totient is φ = 31816396800.

The previous prime is 121300031093. The next prime is 121300031123. The reversal of 121300031100 is 1130003121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 3295909 + ... + 3332508.

Almost surely, 2^121300031100 is an apocalyptic number.

121300031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121300031100 is an abundant number, since it is smaller than the sum of its proper divisors (235414911988).

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

121300031100 is a wasteful number, since it uses less digits than its factorization.

121300031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628495 (or 6628488 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 121300031100 its reverse (1130003121), we get a palindrome (122430034221).

The spelling of 121300031100 in words is "one hundred twenty-one billion, three hundred million, thirty-one thousand, one hundred".