1321032301311 has 4 divisors (see below), whose sum is σ = 1761376401752. Its totient is φ = 880688200872.

The previous prime is 1321032301301. The next prime is 1321032301313. The reversal of 1321032301311 is 1131032301231.

It is a happy number.

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

It is not a de Polignac number, because 1321032301311 - 2⁵ = 1321032301279 is a prime.

It is a super-2 number, since 2×1321032301311² (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 (1321032301313) 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, 220172050216 + ... + 220172050221.

It is an arithmetic number, because the mean of its divisors is an integer number (440344100438).

Almost surely, 2^{1321032301311} is an apocalyptic number.

1321032301311 is a deficient number, since it is larger than the sum of its proper divisors (440344100441).

1321032301311 is an equidigital number, since it uses as much as digits as its factorization.

1321032301311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440344100440.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1321032301311 its reverse (1131032301231), we get a palindrome (2452064602542).

The spelling of 1321032301311 in words is "one trillion, three hundred twenty-one billion, thirty-two million, three hundred one thousand, three hundred eleven".