1301320311331 has 4 divisors (see below), whose sum is σ = 1302736330000. Its totient is φ = 1299904292664.

The previous prime is 1301320311283. The next prime is 1301320311341. The reversal of 1301320311331 is 1331130231031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301320311331 - 2²³ = 1301311922723 is a prime.

It is a super-2 number, since 2×1301320311331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301320311341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708007956 + ... + 708009793.

It is an arithmetic number, because the mean of its divisors is an integer number (325684082500).

Almost surely, 2^{1301320311331} is an apocalyptic number.

1301320311331 is a deficient number, since it is larger than the sum of its proper divisors (1416018669).

1301320311331 is an equidigital number, since it uses as much as digits as its factorization.

1301320311331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416018668.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1301320311331 its reverse (1331130231031), we get a palindrome (2632450542362).

The spelling of 1301320311331 in words is "one trillion, three hundred one billion, three hundred twenty million, three hundred eleven thousand, three hundred thirty-one".