11333120231 has 2 divisors, whose sum is σ = 11333120232. Its totient is φ = 11333120230.

The previous prime is 11333120191. The next prime is 11333120243. The reversal of 11333120231 is 13202133311.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11333120231 is a prime.

It is a super-2 number, since 2×11333120231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11333120731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5666560115 + 5666560116.

It is an arithmetic number, because the mean of its divisors is an integer number (5666560116).

Almost surely, 2^11333120231 is an apocalyptic number.

11333120231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11333120231 is an equidigital number, since it uses as much as digits as its factorization.

11333120231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11333120231 its reverse (13202133311), we get a palindrome (24535253542).

The spelling of 11333120231 in words is "eleven billion, three hundred thirty-three million, one hundred twenty thousand, two hundred thirty-one".