121440023304 has 32 divisors (see below), whose sum is σ = 311805467520. Its totient is φ = 39385953216.

The previous prime is 121440023303. The next prime is 121440023333. The reversal of 121440023304 is 403320044121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (121440023303) 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, 68377504 + ... + 68379279.

It is an arithmetic number, because the mean of its divisors is an integer number (9743920860).

Almost surely, 2^121440023304 is an apocalyptic number.

It is an amenable number.

121440023304 is an abundant number, since it is smaller than the sum of its proper divisors (190365444216).

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

121440023304 is a wasteful number, since it uses less digits than its factorization.

121440023304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136756829 (or 136756825 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 121440023304 its reverse (403320044121), we get a palindrome (524760067425).

The spelling of 121440023304 in words is "one hundred twenty-one billion, four hundred forty million, twenty-three thousand, three hundred four".