1153553789123 has 2 divisors, whose sum is σ = 1153553789124. Its totient is φ = 1153553789122.

The previous prime is 1153553789119. The next prime is 1153553789159. The reversal of 1153553789123 is 3219873553511.

It is a weak prime.

It is an emirp because it is prime and its reverse (3219873553511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1153553789123 - 2² = 1153553789119 is a prime.

It is not a weakly prime, because it can be changed into another prime (1153553789183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576776894561 + 576776894562.

It is an arithmetic number, because the mean of its divisors is an integer number (576776894562).

Almost surely, 2^{1153553789123} is an apocalyptic number.

1153553789123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153553789123 is an equidigital number, since it uses as much as digits as its factorization.

1153553789123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402000, while the sum is 53.

The spelling of 1153553789123 in words is "one trillion, one hundred fifty-three billion, five hundred fifty-three million, seven hundred eighty-nine thousand, one hundred twenty-three".