121312324 has 12 divisors (see below), whose sum is σ = 242624704. Its totient is φ = 51990984.

The previous prime is 121312297. The next prime is 121312339. The reversal of 121312324 is 423213121.

It is a happy number.

121312324 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2166264 + ... + 2166319.

Almost surely, 2^121312324 is an apocalyptic number.

121312324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121312324 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121312324 is a wasteful number, since it uses less digits than its factorization.

121312324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332594 (or 4332592 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 121312324 is about 11014.1873962631. The cubic root of 121312324 is about 495.0339384274.

Adding to 121312324 its reverse (423213121), we get a palindrome (544525445).

It can be divided in two parts, 121 and 312324, that added together give a triangular number (312445 = T₇₉₀).

The spelling of 121312324 in words is "one hundred twenty-one million, three hundred twelve thousand, three hundred twenty-four".