11353031231 has 2 divisors, whose sum is σ = 11353031232. Its totient is φ = 11353031230.

The previous prime is 11353031201. The next prime is 11353031233. The reversal of 11353031231 is 13213035311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11353031231 - 2⁶ = 11353031167 is a prime.

It is a super-2 number, since 2×11353031231² (a number of 21 digits) contains 22 as substring.

Together with 11353031233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 11353031197 and 11353031206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11353031233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5676515615 + 5676515616.

It is an arithmetic number, because the mean of its divisors is an integer number (5676515616).

Almost surely, 2^11353031231 is an apocalyptic number.

11353031231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11353031231 is an equidigital number, since it uses as much as digits as its factorization.

11353031231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

Adding to 11353031231 its reverse (13213035311), we get a palindrome (24566066542).

The spelling of 11353031231 in words is "eleven billion, three hundred fifty-three million, thirty-one thousand, two hundred thirty-one".