11506259131 has 2 divisors, whose sum is σ = 11506259132. Its totient is φ = 11506259130.

The previous prime is 11506259047. The next prime is 11506259159. The reversal of 11506259131 is 13195260511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11506259131 - 2¹¹ = 11506257083 is a prime.

It is a super-2 number, since 2×11506259131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11506259431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5753129565 + 5753129566.

It is an arithmetic number, because the mean of its divisors is an integer number (5753129566).

Almost surely, 2^11506259131 is an apocalyptic number.

11506259131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11506259131 is an equidigital number, since it uses as much as digits as its factorization.

11506259131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 11506259131 in words is "eleven billion, five hundred six million, two hundred fifty-nine thousand, one hundred thirty-one".