131122233149 has 2 divisors, whose sum is σ = 131122233150. Its totient is φ = 131122233148.

The previous prime is 131122233133. The next prime is 131122233161. The reversal of 131122233149 is 941332221131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72312588100 + 58809645049 = 268910^2 + 242507^2 .

It is a cyclic number.

It is not a de Polignac number, because 131122233149 - 2⁴ = 131122233133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131122233169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65561116574 + 65561116575.

It is an arithmetic number, because the mean of its divisors is an integer number (65561116575).

Almost surely, 2^131122233149 is an apocalyptic number.

It is an amenable number.

131122233149 is a deficient number, since it is larger than the sum of its proper divisors (1).

131122233149 is an equidigital number, since it uses as much as digits as its factorization.

131122233149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The spelling of 131122233149 in words is "one hundred thirty-one billion, one hundred twenty-two million, two hundred thirty-three thousand, one hundred forty-nine".