1123323767537 has 2 divisors, whose sum is σ = 1123323767538. Its totient is φ = 1123323767536.

The previous prime is 1123323767497. The next prime is 1123323767539. The reversal of 1123323767537 is 7357673233211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 729587597281 + 393736170256 = 854159^2 + 627484^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123323767537 - 2²⁶ = 1123256658673 is a prime.

Together with 1123323767539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1123323767539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561661883768 + 561661883769.

It is an arithmetic number, because the mean of its divisors is an integer number (561661883769).

Almost surely, 2^{1123323767537} is an apocalyptic number.

It is an amenable number.

1123323767537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123323767537 is an equidigital number, since it uses as much as digits as its factorization.

1123323767537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333960, while the sum is 50.

The spelling of 1123323767537 in words is "one trillion, one hundred twenty-three billion, three hundred twenty-three million, seven hundred sixty-seven thousand, five hundred thirty-seven".