131403432120977 has 2 divisors, whose sum is σ = 131403432120978. Its totient is φ = 131403432120976.

The previous prime is 131403432120929. The next prime is 131403432120991. The reversal of 131403432120977 is 779021234304131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116639978400001 + 14763453720976 = 10799999^2 + 3842324^2 .

It is a cyclic number.

It is not a de Polignac number, because 131403432120977 - 2²⁶ = 131403365012113 is a prime.

It is not a weakly prime, because it can be changed into another prime (131403432170977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65701716060488 + 65701716060489.

It is an arithmetic number, because the mean of its divisors is an integer number (65701716060489).

Almost surely, 2^{131403432120977} is an apocalyptic number.

It is an amenable number.

131403432120977 is a deficient number, since it is larger than the sum of its proper divisors (1).

131403432120977 is an equidigital number, since it uses as much as digits as its factorization.

131403432120977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 131403432120977 in words is "one hundred thirty-one trillion, four hundred three billion, four hundred thirty-two million, one hundred twenty thousand, nine hundred seventy-seven".