131103440009 has 2 divisors, whose sum is σ = 131103440010. Its totient is φ = 131103440008.

The previous prime is 131103439939. The next prime is 131103440023. The reversal of 131103440009 is 900044301131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125831953984 + 5271486025 = 354728^2 + 72605^2 .

It is a cyclic number.

It is not a de Polignac number, because 131103440009 - 2²⁴ = 131086662793 is a prime.

It is a super-2 number, since 2×131103440009² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131103440009.

It is not a weakly prime, because it can be changed into another prime (131103440509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65551720004 + 65551720005.

It is an arithmetic number, because the mean of its divisors is an integer number (65551720005).

Almost surely, 2^131103440009 is an apocalyptic number.

It is an amenable number.

131103440009 is a deficient number, since it is larger than the sum of its proper divisors (1).

131103440009 is an equidigital number, since it uses as much as digits as its factorization.

131103440009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 131103440009 in words is "one hundred thirty-one billion, one hundred three million, four hundred forty thousand, nine".