130877819731 has 4 divisors (see below), whose sum is σ = 131089939992. Its totient is φ = 130665699472.

The previous prime is 130877819713. The next prime is 130877819741. The reversal of 130877819731 is 137918778031.

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 130877819731 - 2⁷ = 130877819603 is a prime.

It is a super-2 number, since 2×130877819731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130877819741) 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, 106059205 + ... + 106060438.

It is an arithmetic number, because the mean of its divisors is an integer number (32772484998).

Almost surely, 2^130877819731 is an apocalyptic number.

130877819731 is a deficient number, since it is larger than the sum of its proper divisors (212120261).

130877819731 is an equidigital number, since it uses as much as digits as its factorization.

130877819731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212120260.

The product of its (nonzero) digits is 1778112, while the sum is 55.

The spelling of 130877819731 in words is "one hundred thirty billion, eight hundred seventy-seven million, eight hundred nineteen thousand, seven hundred thirty-one".