121423564 has 12 divisors (see below), whose sum is σ = 215663224. Its totient is φ = 59805504.

The previous prime is 121423543. The next prime is 121423567. The reversal of 121423564 is 465324121.

It is not an unprimeable number, because it can be changed into a prime (121423567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226269 + ... + 226804.

Almost surely, 2^121423564 is an apocalyptic number.

It is an amenable number.

121423564 is a deficient number, since it is larger than the sum of its proper divisors (94239660).

121423564 is a wasteful number, since it uses less digits than its factorization.

121423564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453144 (or 453142 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 121423564 is about 11019.2360896752. The cubic root of 121423564 is about 495.1852029493.

Adding to 121423564 its reverse (465324121), we get a palindrome (586747685).

The spelling of 121423564 in words is "one hundred twenty-one million, four hundred twenty-three thousand, five hundred sixty-four".