1340023673123 has 2 divisors, whose sum is σ = 1340023673124. Its totient is φ = 1340023673122.

The previous prime is 1340023673083. The next prime is 1340023673141. The reversal of 1340023673123 is 3213763200431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1340023673123 - 2²⁰ = 1340022624547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340073673123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670011836561 + 670011836562.

It is an arithmetic number, because the mean of its divisors is an integer number (670011836562).

Almost surely, 2^{1340023673123} is an apocalyptic number.

1340023673123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340023673123 is an equidigital number, since it uses as much as digits as its factorization.

1340023673123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 35.

Adding to 1340023673123 its reverse (3213763200431), we get a palindrome (4553786873554).

The spelling of 1340023673123 in words is "one trillion, three hundred forty billion, twenty-three million, six hundred seventy-three thousand, one hundred twenty-three".