121384434 has 16 divisors (see below), whose sum is σ = 243029088. Its totient is φ = 40418112.

The previous prime is 121384433. The next prime is 121384507. The reversal of 121384434 is 434483121.

It is not an unprimeable number, because it can be changed into a prime (121384433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4492 + ... + 16215.

It is an arithmetic number, because the mean of its divisors is an integer number (15189318).

Almost surely, 2^121384434 is an apocalyptic number.

121384434 is an abundant number, since it is smaller than the sum of its proper divisors (121644654).

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

121384434 is a wasteful number, since it uses less digits than its factorization.

121384434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21689.

The product of its digits is 9216, while the sum is 30.

The square root of 121384434 is about 11017.4604151774. The cubic root of 121384434 is about 495.1320043823.

The spelling of 121384434 in words is "one hundred twenty-one million, three hundred eighty-four thousand, four hundred thirty-four".