131373446773 has 2 divisors, whose sum is σ = 131373446774. Its totient is φ = 131373446772.

The previous prime is 131373446731. The next prime is 131373446797. The reversal of 131373446773 is 377644373131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127529694769 + 3843752004 = 357113^2 + 61998^2 .

It is an emirp because it is prime and its reverse (377644373131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131373446773 - 2⁹ = 131373446261 is a prime.

It is a super-2 number, since 2×131373446773² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131373446723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65686723386 + 65686723387.

It is an arithmetic number, because the mean of its divisors is an integer number (65686723387).

Almost surely, 2^131373446773 is an apocalyptic number.

It is an amenable number.

131373446773 is a deficient number, since it is larger than the sum of its proper divisors (1).

131373446773 is an equidigital number, since it uses as much as digits as its factorization.

131373446773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2667168, while the sum is 49.

The spelling of 131373446773 in words is "one hundred thirty-one billion, three hundred seventy-three million, four hundred forty-six thousand, seven hundred seventy-three".