11231333131 has 2 divisors, whose sum is σ = 11231333132. Its totient is φ = 11231333130.

The previous prime is 11231333119. The next prime is 11231333231. The reversal of 11231333131 is 13133313211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11231333131 - 2¹⁵ = 11231300363 is a prime.

It is a super-2 number, since 2×11231333131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11231333231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615666565 + 5615666566.

It is an arithmetic number, because the mean of its divisors is an integer number (5615666566).

Almost surely, 2^11231333131 is an apocalyptic number.

11231333131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231333131 is an equidigital number, since it uses as much as digits as its factorization.

11231333131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 22.

Adding to 11231333131 its reverse (13133313211), we get a palindrome (24364646342).

The spelling of 11231333131 in words is "eleven billion, two hundred thirty-one million, three hundred thirty-three thousand, one hundred thirty-one".