131127777163 has 4 divisors (see below), whose sum is σ = 131285953840. Its totient is φ = 130969600488.

The previous prime is 131127777139. The next prime is 131127777247. The reversal of 131127777163 is 361777721131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361777721131 = 71 ⋅5095460861.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131127777163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131127777863) 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, 79087095 + ... + 79088752.

It is an arithmetic number, because the mean of its divisors is an integer number (32821488460).

Almost surely, 2^131127777163 is an apocalyptic number.

131127777163 is a deficient number, since it is larger than the sum of its proper divisors (158176677).

131127777163 is an equidigital number, since it uses as much as digits as its factorization.

131127777163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158176676.

The product of its digits is 259308, while the sum is 46.

The spelling of 131127777163 in words is "one hundred thirty-one billion, one hundred twenty-seven million, seven hundred seventy-seven thousand, one hundred sixty-three".