1123792128539 has 2 divisors, whose sum is σ = 1123792128540. Its totient is φ = 1123792128538.

The previous prime is 1123792128533. The next prime is 1123792128541. The reversal of 1123792128539 is 9358212973211.

It is a strong prime.

It is an emirp because it is prime and its reverse (9358212973211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123792128539 - 2³⁶ = 1055072651803 is a prime.

Together with 1123792128541, 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 (1123792128533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561896064269 + 561896064270.

It is an arithmetic number, because the mean of its divisors is an integer number (561896064270).

Almost surely, 2^{1123792128539} is an apocalyptic number.

1123792128539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123792128539 is an equidigital number, since it uses as much as digits as its factorization.

1123792128539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 53.

The spelling of 1123792128539 in words is "one trillion, one hundred twenty-three billion, seven hundred ninety-two million, one hundred twenty-eight thousand, five hundred thirty-nine".