1302403630441 has 3 divisors (see below), whose sum is σ = 1302404771671. Its totient is φ = 1302402489212.

The previous prime is 1302403630397. The next prime is 1302403630453. The reversal of 1302403630441 is 1440363042031.

The square root of 1302403630441 is 1141229.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 157632026841 + 1144771603600 = 397029^2 + 1069940^2 .

It is not a de Polignac number, because 1302403630441 - 2²⁵ = 1302370076009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1302403633441) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 570615 + ... + 1711843.

Almost surely, 2^{1302403630441} is an apocalyptic number.

1302403630441 is the 1141229-th square number.

1302403630441 is the 570615-th centered octagonal number.

It is an amenable number.

1302403630441 is a deficient number, since it is larger than the sum of its proper divisors (1141230).

1302403630441 is an frugal number, since it uses more digits than its factorization.

1302403630441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282458 (or 1141229 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 1302403630441 its reverse (1440363042031), we get a palindrome (2742766672472).

The spelling of 1302403630441 in words is "one trillion, three hundred two billion, four hundred three million, six hundred thirty thousand, four hundred forty-one".