11232231331 has 4 divisors (see below), whose sum is σ = 11233187352. Its totient is φ = 11231275312.

The previous prime is 11232231323. The next prime is 11232231337. The reversal of 11232231331 is 13313223211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13313223211 = 6691 ⋅1989721.

It is a cyclic number.

It is not a de Polignac number, because 11232231331 - 2³ = 11232231323 is a prime.

It is a super-2 number, since 2×11232231331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11232231337) 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, 460165 + ... + 483958.

It is an arithmetic number, because the mean of its divisors is an integer number (2808296838).

Almost surely, 2^11232231331 is an apocalyptic number.

11232231331 is a deficient number, since it is larger than the sum of its proper divisors (956021).

11232231331 is an equidigital number, since it uses as much as digits as its factorization.

11232231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956020.

The product of its digits is 648, while the sum is 22.

Adding to 11232231331 its reverse (13313223211), we get a palindrome (24545454542).

The spelling of 11232231331 in words is "eleven billion, two hundred thirty-two million, two hundred thirty-one thousand, three hundred thirty-one".