121304043115453 has 8 divisors (see below), whose sum is σ = 135908215382880. Its totient is φ = 107295959512080.

The previous prime is 121304043115447. The next prime is 121304043115487. The reversal of 121304043115453 is 354511340403121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121304043115453 - 2⁵ = 121304043115421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121304043115403) 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, 149022165583 + ... + 149022166396.

It is an arithmetic number, because the mean of its divisors is an integer number (16988526922860).

Almost surely, 2^{121304043115453} is an apocalyptic number.

It is an amenable number.

121304043115453 is a deficient number, since it is larger than the sum of its proper divisors (14604172267427).

121304043115453 is a wasteful number, since it uses less digits than its factorization.

121304043115453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298044332027.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 121304043115453 its reverse (354511340403121), we get a palindrome (475815383518574).

The spelling of 121304043115453 in words is "one hundred twenty-one trillion, three hundred four billion, forty-three million, one hundred fifteen thousand, four hundred fifty-three".