131351115611 has 4 divisors (see below), whose sum is σ = 131404928424. Its totient is φ = 131297302800.

The previous prime is 131351115607. The next prime is 131351115613. The reversal of 131351115611 is 116511153131.

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 131351115611 - 2² = 131351115607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131351115613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26902745 + ... + 26907626.

It is an arithmetic number, because the mean of its divisors is an integer number (32851232106).

Almost surely, 2^131351115611 is an apocalyptic number.

131351115611 is a deficient number, since it is larger than the sum of its proper divisors (53812813).

131351115611 is an equidigital number, since it uses as much as digits as its factorization.

131351115611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53812812.

The product of its digits is 1350, while the sum is 29.

Adding to 131351115611 its reverse (116511153131), we get a palindrome (247862268742).

The spelling of 131351115611 in words is "one hundred thirty-one billion, three hundred fifty-one million, one hundred fifteen thousand, six hundred eleven".