121320113044 has 24 divisors (see below), whose sum is σ = 228939150440. Its totient is φ = 55921065984.

The previous prime is 121320113041. The next prime is 121320113051. The reversal of 121320113044 is 440311023121.

It can be written as a sum of positive squares in 4 ways, for example, as 2441348100 + 118878764944 = 49410^2 + 344788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320113041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1476969 + ... + 1556944.

Almost surely, 2^121320113044 is an apocalyptic number.

It is an amenable number.

121320113044 is a deficient number, since it is larger than the sum of its proper divisors (107619037396).

121320113044 is a wasteful number, since it uses less digits than its factorization.

121320113044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034699 (or 3034697 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 121320113044 its reverse (440311023121), we get a palindrome (561631136165).

The spelling of 121320113044 in words is "one hundred twenty-one billion, three hundred twenty million, one hundred thirteen thousand, forty-four".