1340444029973 has 2 divisors, whose sum is σ = 1340444029974. Its totient is φ = 1340444029972.

The previous prime is 1340444029913. The next prime is 1340444029997. The reversal of 1340444029973 is 3799204440431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1067382392164 + 273061637809 = 1033142^2 + 522553^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340444029973 - 2¹⁶ = 1340443964437 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340444029913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670222014986 + 670222014987.

It is an arithmetic number, because the mean of its divisors is an integer number (670222014987).

Almost surely, 2^{1340444029973} is an apocalyptic number.

It is an amenable number.

1340444029973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340444029973 is an equidigital number, since it uses as much as digits as its factorization.

1340444029973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2612736, while the sum is 50.

The spelling of 1340444029973 in words is "one trillion, three hundred forty billion, four hundred forty-four million, twenty-nine thousand, nine hundred seventy-three".