11340312131 has 2 divisors, whose sum is σ = 11340312132. Its totient is φ = 11340312130.

The previous prime is 11340312103. The next prime is 11340312133. The reversal of 11340312131 is 13121304311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11340312131 - 2²² = 11336117827 is a prime.

It is a super-2 number, since 2×11340312131² (a number of 21 digits) contains 22 as substring.

Together with 11340312133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11340312133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5670156065 + 5670156066.

It is an arithmetic number, because the mean of its divisors is an integer number (5670156066).

Almost surely, 2^11340312131 is an apocalyptic number.

11340312131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11340312131 is an equidigital number, since it uses as much as digits as its factorization.

11340312131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11340312131 its reverse (13121304311), we get a palindrome (24461616442).

The spelling of 11340312131 in words is "eleven billion, three hundred forty million, three hundred twelve thousand, one hundred thirty-one".