1140123443309 has 2 divisors, whose sum is σ = 1140123443310. Its totient is φ = 1140123443308.

The previous prime is 1140123443287. The next prime is 1140123443377. The reversal of 1140123443309 is 9033443210411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1100237362084 + 39886081225 = 1048922^2 + 199715^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140123443309 - 2²⁴ = 1140106666093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140123442309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570061721654 + 570061721655.

It is an arithmetic number, because the mean of its divisors is an integer number (570061721655).

Almost surely, 2^{1140123443309} is an apocalyptic number.

It is an amenable number.

1140123443309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140123443309 is an equidigital number, since it uses as much as digits as its factorization.

1140123443309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 1140123443309 in words is "one trillion, one hundred forty billion, one hundred twenty-three million, four hundred forty-three thousand, three hundred nine".