121381324 has 12 divisors (see below), whose sum is σ = 212524704. Its totient is φ = 60659984.

The previous prime is 121381321. The next prime is 121381331. The reversal of 121381324 is 423183121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121381321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2829 + ... + 15835.

It is an arithmetic number, because the mean of its divisors is an integer number (17710392).

Almost surely, 2^121381324 is an apocalyptic number.

It is an amenable number.

121381324 is a deficient number, since it is larger than the sum of its proper divisors (91143380).

121381324 is a wasteful number, since it uses less digits than its factorization.

121381324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15344 (or 15342 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 121381324 is about 11017.3192746693. The cubic root of 121381324 is about 495.1277757411.

The spelling of 121381324 in words is "one hundred twenty-one million, three hundred eighty-one thousand, three hundred twenty-four".