1345116010421 has 2 divisors, whose sum is σ = 1345116010422. Its totient is φ = 1345116010420.

The previous prime is 1345116010397. The next prime is 1345116010439. The reversal of 1345116010421 is 1240106115431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1270061380900 + 75054629521 = 1126970^2 + 273961^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345116010421 - 2¹⁴ = 1345115994037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345116013421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672558005210 + 672558005211.

It is an arithmetic number, because the mean of its divisors is an integer number (672558005211).

Almost surely, 2^{1345116010421} is an apocalyptic number.

It is an amenable number.

1345116010421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345116010421 is an equidigital number, since it uses as much as digits as its factorization.

1345116010421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 1345116010421 in words is "one trillion, three hundred forty-five billion, one hundred sixteen million, ten thousand, four hundred twenty-one".