231331411311 has 96 divisors (see below), whose sum is σ = 418045598208. Its totient is φ = 110491729920.

The previous prime is 231331411291. The next prime is 231331411331. The reversal of 231331411311 is 113114133132.

It is an interprime number because it is at equal distance from previous prime (231331411291) and next prime (231331411331).

It is not a de Polignac number, because 231331411311 - 2¹⁰ = 231331410287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231331411331) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10021495 + ... + 10044551.

It is an arithmetic number, because the mean of its divisors is an integer number (4354641648).

Almost surely, 2^231331411311 is an apocalyptic number.

231331411311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

231331411311 is a deficient number, since it is larger than the sum of its proper divisors (186714186897).

231331411311 is a wasteful number, since it uses less digits than its factorization.

231331411311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23361 (or 23348 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

Adding to 231331411311 its reverse (113114133132), we get a palindrome (344445544443).

The spelling of 231331411311 in words is "two hundred thirty-one billion, three hundred thirty-one million, four hundred eleven thousand, three hundred eleven".