11705379131 has 2 divisors, whose sum is σ = 11705379132. Its totient is φ = 11705379130.

The previous prime is 11705379079. The next prime is 11705379139. The reversal of 11705379131 is 13197350711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11705379131 is a prime.

It is a super-2 number, since 2×11705379131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11705379139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5852689565 + 5852689566.

It is an arithmetic number, because the mean of its divisors is an integer number (5852689566).

Almost surely, 2^11705379131 is an apocalyptic number.

11705379131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11705379131 is an equidigital number, since it uses as much as digits as its factorization.

11705379131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845, while the sum is 38.

The spelling of 11705379131 in words is "eleven billion, seven hundred five million, three hundred seventy-nine thousand, one hundred thirty-one".