1304132231421 has 6 divisors (see below), whose sum is σ = 1883746556510. Its totient is φ = 869421487608.

The previous prime is 1304132231419. The next prime is 1304132231431. The reversal of 1304132231421 is 1241322314031.

1304132231421 is a `hidden beast` number, since 1 + 3 + 0 + 4 + 1 + 3 + 2 + 231 + 421 = 666.

It can be written as a sum of positive squares in only one way, i.e., 721259532900 + 582872698521 = 849270^2 + 763461^2 .

It is not a de Polignac number, because 1304132231421 - 2¹ = 1304132231419 is a prime.

It is a super-2 number, since 2×1304132231421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304132231431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72451790626 + ... + 72451790643.

Almost surely, 2^{1304132231421} is an apocalyptic number.

It is an amenable number.

1304132231421 is a deficient number, since it is larger than the sum of its proper divisors (579614325089).

1304132231421 is a wasteful number, since it uses less digits than its factorization.

1304132231421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144903581275 (or 144903581272 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 1304132231421 its reverse (1241322314031), we get a palindrome (2545454545452).

The spelling of 1304132231421 in words is "one trillion, three hundred four billion, one hundred thirty-two million, two hundred thirty-one thousand, four hundred twenty-one".