11615132131 has 4 divisors (see below), whose sum is σ = 11762159200. Its totient is φ = 11468105064.

The previous prime is 11615132099. The next prime is 11615132147. The reversal of 11615132131 is 13123151611.

11615132131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11615132131 - 2⁵ = 11615132099 is a prime.

It is a super-2 number, since 2×11615132131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11615132096 and 11615132105.

It is not an unprimeable number, because it can be changed into a prime (11615136131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73513416 + ... + 73513573.

It is an arithmetic number, because the mean of its divisors is an integer number (2940539800).

Almost surely, 2^11615132131 is an apocalyptic number.

11615132131 is a deficient number, since it is larger than the sum of its proper divisors (147027069).

11615132131 is an equidigital number, since it uses as much as digits as its factorization.

11615132131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147027068.

The product of its digits is 540, while the sum is 25.

Adding to 11615132131 its reverse (13123151611), we get a palindrome (24738283742).

The spelling of 11615132131 in words is "eleven billion, six hundred fifteen million, one hundred thirty-two thousand, one hundred thirty-one".