1131320231311 has 8 divisors (see below), whose sum is σ = 1231927657200. Its totient is φ = 1034819231040.

The previous prime is 1131320231299. The next prime is 1131320231399.

1131320231311 is nontrivially palindromic in base 10.

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

It is a de Polignac number, because none of the positive numbers 2^k-1131320231311 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 (1131320231411) 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, 1026605830 + ... + 1026606931.

It is an arithmetic number, because the mean of its divisors is an integer number (153990957150).

Almost surely, 2^{1131320231311} is an apocalyptic number.

1131320231311 is a deficient number, since it is larger than the sum of its proper divisors (100607425889).

1131320231311 is a wasteful number, since it uses less digits than its factorization.

1131320231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053212809.

The product of its (nonzero) digits is 324, while the sum is 22.

It can be divided in two parts, 1131320 and 231311, that added together give a palindrome (1362631).

The spelling of 1131320231311 in words is "one trillion, one hundred thirty-one billion, three hundred twenty million, two hundred thirty-one thousand, three hundred eleven".