131403234120689 has 2 divisors, whose sum is σ = 131403234120690. Its totient is φ = 131403234120688.

The previous prime is 131403234120667. The next prime is 131403234120733. The reversal of 131403234120689 is 986021432304131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100636609968400 + 30766624152289 = 10031780^2 + 5546767^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131403234120689 is a prime.

It is not a weakly prime, because it can be changed into another prime (131403234125689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65701617060344 + 65701617060345.

It is an arithmetic number, because the mean of its divisors is an integer number (65701617060345).

Almost surely, 2^{131403234120689} is an apocalyptic number.

It is an amenable number.

131403234120689 is a deficient number, since it is larger than the sum of its proper divisors (1).

131403234120689 is an equidigital number, since it uses as much as digits as its factorization.

131403234120689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 131403234120689 in words is "one hundred thirty-one trillion, four hundred three billion, two hundred thirty-four million, one hundred twenty thousand, six hundred eighty-nine".