121453100 has 36 divisors (see below), whose sum is σ = 279060264. Its totient is φ = 45722880.

The previous prime is 121453091. The next prime is 121453121. The reversal of 121453100 is 1354121.

It is a super-2 number, since 2×121453100² = 29501710999220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 34022 + ... + 37421.

It is an arithmetic number, because the mean of its divisors is an integer number (7751674).

Almost surely, 2^121453100 is an apocalyptic number.

121453100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121453100 is an abundant number, since it is smaller than the sum of its proper divisors (157607164).

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

121453100 is a wasteful number, since it uses less digits than its factorization.

121453100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71474 (or 71467 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 121453100 is about 11020.5762099810. The cubic root of 121453100 is about 495.2253505778.

The spelling of 121453100 in words is "one hundred twenty-one million, four hundred fifty-three thousand, one hundred".