1354044036421 has 2 divisors, whose sum is σ = 1354044036422. Its totient is φ = 1354044036420.

The previous prime is 1354044036409. The next prime is 1354044036431. The reversal of 1354044036421 is 1246304404531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1101523716225 + 252520320196 = 1049535^2 + 502514^2 .

It is an emirp because it is prime and its reverse (1246304404531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1354044036421 - 2²¹ = 1354041939269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1354044036431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677022018210 + 677022018211.

It is an arithmetic number, because the mean of its divisors is an integer number (677022018211).

Almost surely, 2^{1354044036421} is an apocalyptic number.

It is an amenable number.

1354044036421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1354044036421 is an equidigital number, since it uses as much as digits as its factorization.

1354044036421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 1354044036421 in words is "one trillion, three hundred fifty-four billion, forty-four million, thirty-six thousand, four hundred twenty-one".