121324542 has 16 divisors (see below), whose sum is σ = 242924160. Its totient is φ = 40395672.

The previous prime is 121324523. The next prime is 121324559. The reversal of 121324542 is 245423121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5488 + ... + 16515.

It is an arithmetic number, because the mean of its divisors is an integer number (15182760).

Almost surely, 2^121324542 is an apocalyptic number.

121324542 is an abundant number, since it is smaller than the sum of its proper divisors (121599618).

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

121324542 is a wasteful number, since it uses less digits than its factorization.

121324542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22927.

The product of its digits is 1920, while the sum is 24.

The square root of 121324542 is about 11014.7420305698. The cubic root of 121324542 is about 495.0505570237.

Adding to 121324542 its reverse (245423121), we get a palindrome (366747663).

The spelling of 121324542 in words is "one hundred twenty-one million, three hundred twenty-four thousand, five hundred forty-two".