121100230100 has 36 divisors (see below), whose sum is σ = 262819261824. Its totient is φ = 48434237280.

The previous prime is 121100230091. The next prime is 121100230123. The reversal of 121100230100 is 1032001121.

It is a congruent number.

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, 811517 + ... + 949083.

Almost surely, 2^121100230100 is an apocalyptic number.

121100230100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121100230100 is an abundant number, since it is smaller than the sum of its proper divisors (141719031724).

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

121100230100 is a wasteful number, since it uses less digits than its factorization.

121100230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146384 (or 146377 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 121100230100 its reverse (1032001121), we get a palindrome (122132231221).

The spelling of 121100230100 in words is "one hundred twenty-one billion, one hundred million, two hundred thirty thousand, one hundred".