1131313032231 has 16 divisors (see below), whose sum is σ = 1523950869600. Its totient is φ = 746447811200.

The previous prime is 1131313032203. The next prime is 1131313032257. The reversal of 1131313032231 is 1322303131311.

It is a cyclic number.

It is not a de Polignac number, because 1131313032231 - 2¹⁹ = 1131312507943 is a prime.

It is a super-2 number, since 2×1131313032231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131313030231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39961 + ... + 1504733.

It is an arithmetic number, because the mean of its divisors is an integer number (95246929350).

Almost surely, 2^{1131313032231} is an apocalyptic number.

1131313032231 is a deficient number, since it is larger than the sum of its proper divisors (392637837369).

1131313032231 is a wasteful number, since it uses less digits than its factorization.

1131313032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467426.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1131313032231 its reverse (1322303131311), we get a palindrome (2453616163542).

The spelling of 1131313032231 in words is "one trillion, one hundred thirty-one billion, three hundred thirteen million, thirty-two thousand, two hundred thirty-one".