11506695331 has 2 divisors, whose sum is σ = 11506695332. Its totient is φ = 11506695330.

The previous prime is 11506695283. The next prime is 11506695373. The reversal of 11506695331 is 13359660511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11506695331 - 2¹⁹ = 11506171043 is a prime.

It is a super-2 number, since 2×11506695331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11506695631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5753347665 + 5753347666.

It is an arithmetic number, because the mean of its divisors is an integer number (5753347666).

Almost surely, 2^11506695331 is an apocalyptic number.

11506695331 is a deficient number, since it is larger than the sum of its proper divisors (1).

11506695331 is an equidigital number, since it uses as much as digits as its factorization.

11506695331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72900, while the sum is 40.

The spelling of 11506695331 in words is "eleven billion, five hundred six million, six hundred ninety-five thousand, three hundred thirty-one".