1131452232311 has 4 divisors (see below), whose sum is σ = 1150000629624. Its totient is φ = 1112903835000.

The previous prime is 1131452232299. The next prime is 1131452232397. The reversal of 1131452232311 is 1132322541311.

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 1131452232311 - 2³⁸ = 856574325367 is a prime.

It is a super-2 number, since 2×1131452232311² (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 (1131452232511) 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, 9274198565 + ... + 9274198686.

It is an arithmetic number, because the mean of its divisors is an integer number (287500157406).

Almost surely, 2^{1131452232311} is an apocalyptic number.

1131452232311 is a deficient number, since it is larger than the sum of its proper divisors (18548397313).

1131452232311 is an equidigital number, since it uses as much as digits as its factorization.

1131452232311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18548397312.

The product of its digits is 4320, while the sum is 29.

Adding to 1131452232311 its reverse (1132322541311), we get a palindrome (2263774773622).

The spelling of 1131452232311 in words is "one trillion, one hundred thirty-one billion, four hundred fifty-two million, two hundred thirty-two thousand, three hundred eleven".