121344335013 has 32 divisors (see below), whose sum is σ = 177107236992. Its totient is φ = 73289779200.

The previous prime is 121344334987. The next prime is 121344335017. The reversal of 121344335013 is 310533443121.

It is a happy number.

It is not a de Polignac number, because 121344335013 - 2⁶ = 121344334949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121344335017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13281795 + ... + 13290927.

It is an arithmetic number, because the mean of its divisors is an integer number (5534601156).

Almost surely, 2^121344335013 is an apocalyptic number.

It is an amenable number.

121344335013 is a deficient number, since it is larger than the sum of its proper divisors (55762901979).

121344335013 is a wasteful number, since it uses less digits than its factorization.

121344335013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10485.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 121344335013 its reverse (310533443121), we get a palindrome (431877778134).

The spelling of 121344335013 in words is "one hundred twenty-one billion, three hundred forty-four million, three hundred thirty-five thousand, thirteen".