131110001273 has 2 divisors, whose sum is σ = 131110001274. Its totient is φ = 131110001272.

The previous prime is 131110001137. The next prime is 131110001291. The reversal of 131110001273 is 372100011131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130113146944 + 996854329 = 360712^2 + 31573^2 .

It is a cyclic number.

It is not a de Polignac number, because 131110001273 - 2¹⁰ = 131110000249 is a prime.

It is not a weakly prime, because it can be changed into another prime (131110001293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65555000636 + 65555000637.

It is an arithmetic number, because the mean of its divisors is an integer number (65555000637).

Almost surely, 2^131110001273 is an apocalyptic number.

It is an amenable number.

131110001273 is a deficient number, since it is larger than the sum of its proper divisors (1).

131110001273 is an equidigital number, since it uses as much as digits as its factorization.

131110001273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 20.

The spelling of 131110001273 in words is "one hundred thirty-one billion, one hundred ten million, one thousand, two hundred seventy-three".