791131233133 has 2 divisors, whose sum is σ = 791131233134. Its totient is φ = 791131233132.

The previous prime is 791131233127. The next prime is 791131233143. The reversal of 791131233133 is 331332131197.

791131233133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640957157604 + 150174075529 = 800598^2 + 387523^2 .

It is an emirp because it is prime and its reverse (331332131197) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791131233133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 791131233092 and 791131233101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791131233143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395565616566 + 395565616567.

It is an arithmetic number, because the mean of its divisors is an integer number (395565616567).

Almost surely, 2^791131233133 is an apocalyptic number.

It is an amenable number.

791131233133 is a deficient number, since it is larger than the sum of its proper divisors (1).

791131233133 is an equidigital number, since it uses as much as digits as its factorization.

791131233133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 37.

The spelling of 791131233133 in words is "seven hundred ninety-one billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred thirty-three".