131433420277 has 2 divisors, whose sum is σ = 131433420278. Its totient is φ = 131433420276.

The previous prime is 131433420229. The next prime is 131433420319. The reversal of 131433420277 is 772024334131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126856356561 + 4577063716 = 356169^2 + 67654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131433420277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131433427277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65716710138 + 65716710139.

It is an arithmetic number, because the mean of its divisors is an integer number (65716710139).

Almost surely, 2^131433420277 is an apocalyptic number.

It is an amenable number.

131433420277 is a deficient number, since it is larger than the sum of its proper divisors (1).

131433420277 is an equidigital number, since it uses as much as digits as its factorization.

131433420277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 131433420277 in words is "one hundred thirty-one billion, four hundred thirty-three million, four hundred twenty thousand, two hundred seventy-seven".