121290234 has 32 divisors (see below), whose sum is σ = 265151040. Its totient is φ = 36761472.

The previous prime is 121290227. The next prime is 121290251. The reversal of 121290234 is 432092121.

It is a super-2 number, since 2×121290234² = 29422641727549512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6379 + ... + 16830.

It is an arithmetic number, because the mean of its divisors is an integer number (8285970).

Almost surely, 2^121290234 is an apocalyptic number.

121290234 is an abundant number, since it is smaller than the sum of its proper divisors (143860806).

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

121290234 is a wasteful number, since it uses less digits than its factorization.

121290234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23294.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 121290234 is about 11013.1845530709. The cubic root of 121290234 is about 495.0038893685.

The spelling of 121290234 in words is "one hundred twenty-one million, two hundred ninety thousand, two hundred thirty-four".