121451230 has 48 divisors (see below), whose sum is σ = 244419120. Its totient is φ = 43294464.

The previous prime is 121451219. The next prime is 121451257. The reversal of 121451230 is 32154121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 121451198 and 121451207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60381 + ... + 62359.

It is an arithmetic number, because the mean of its divisors is an integer number (5092065).

Almost surely, 2^121451230 is an apocalyptic number.

121451230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121451230 is an abundant number, since it is smaller than the sum of its proper divisors (122967890).

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

121451230 is a wasteful number, since it uses less digits than its factorization.

121451230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2041 (or 2022 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 121451230 is about 11020.4913683556. The cubic root of 121451230 is about 495.2228089214. Note that the first 3 decimals are identical.

The spelling of 121451230 in words is "one hundred twenty-one million, four hundred fifty-one thousand, two hundred thirty".