1304400121023 has 8 divisors (see below), whose sum is σ = 1761215353600. Its totient is φ = 858592484568.

The previous prime is 1304400121009. The next prime is 1304400121027. The reversal of 1304400121023 is 3201210044031.

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

It is not a de Polignac number, because 1304400121023 - 2²⁰ = 1304399072447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304400121027) 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, 2751898753 + ... + 2751899226.

It is an arithmetic number, because the mean of its divisors is an integer number (220151919200).

Almost surely, 2^{1304400121023} is an apocalyptic number.

1304400121023 is a deficient number, since it is larger than the sum of its proper divisors (456815232577).

1304400121023 is an equidigital number, since it uses as much as digits as its factorization.

1304400121023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5503798061.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1304400121023 its reverse (3201210044031), we get a palindrome (4505610165054).

The spelling of 1304400121023 in words is "one trillion, three hundred four billion, four hundred million, one hundred twenty-one thousand, twenty-three".