131195728810 has 8 divisors (see below), whose sum is σ = 236152311876. Its totient is φ = 52478291520.

The previous prime is 131195728801. The next prime is 131195728813. The reversal of 131195728810 is 18827591131.

131195728810 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 127201362409 + 3994366401 = 356653^2 + 63201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×131195728810² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131195728813) 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, 6559786431 + ... + 6559786450.

Almost surely, 2^131195728810 is an apocalyptic number.

131195728810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131195728810 is a deficient number, since it is larger than the sum of its proper divisors (104956583066).

131195728810 is a wasteful number, since it uses less digits than its factorization.

131195728810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13119572888.

The product of its (nonzero) digits is 120960, while the sum is 46.

The spelling of 131195728810 in words is "one hundred thirty-one billion, one hundred ninety-five million, seven hundred twenty-eight thousand, eight hundred ten".