11351522131 has 2 divisors, whose sum is σ = 11351522132. Its totient is φ = 11351522130.

The previous prime is 11351522129. The next prime is 11351522207. The reversal of 11351522131 is 13122515311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11351522131 - 2¹ = 11351522129 is a prime.

It is a super-2 number, since 2×11351522131² (a number of 21 digits) contains 22 as substring.

Together with 11351522129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11351522096 and 11351522105.

It is not a weakly prime, because it can be changed into another prime (11351522731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5675761065 + 5675761066.

It is an arithmetic number, because the mean of its divisors is an integer number (5675761066).

Almost surely, 2^11351522131 is an apocalyptic number.

11351522131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11351522131 is an equidigital number, since it uses as much as digits as its factorization.

11351522131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 25.

The spelling of 11351522131 in words is "eleven billion, three hundred fifty-one million, five hundred twenty-two thousand, one hundred thirty-one".