121003100 has 36 divisors (see below), whose sum is σ = 267040200. Its totient is φ = 47578560.

The previous prime is 121003079. The next prime is 121003111. The reversal of 121003100 is 1300121.

It is a super-2 number, since 2×121003100² = 29283500419220000, which contains 22 as substring.

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, 4355 + ... + 16154.

Almost surely, 2^121003100 is an apocalyptic number.

121003100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121003100 is an abundant number, since it is smaller than the sum of its proper divisors (146037100).

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

121003100 is a wasteful number, since it uses less digits than its factorization.

121003100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20582 (or 20575 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 121003100 is about 11000.1409081884. The cubic root of 121003100 is about 494.6129682202.

Adding to 121003100 its reverse (1300121), we get a palindrome (122303221).

The spelling of 121003100 in words is "one hundred twenty-one million, three thousand, one hundred".