1421244323197 has 2 divisors, whose sum is σ = 1421244323198. Its totient is φ = 1421244323196.

The previous prime is 1421244323119. The next prime is 1421244323227. The reversal of 1421244323197 is 7913234421241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1368680048836 + 52564274361 = 1169906^2 + 229269^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421244323197 - 2⁷ = 1421244323069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421244353197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710622161598 + 710622161599.

It is an arithmetic number, because the mean of its divisors is an integer number (710622161599).

Almost surely, 2^{1421244323197} is an apocalyptic number.

It is an amenable number.

1421244323197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421244323197 is an equidigital number, since it uses as much as digits as its factorization.

1421244323197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The spelling of 1421244323197 in words is "one trillion, four hundred twenty-one billion, two hundred forty-four million, three hundred twenty-three thousand, one hundred ninety-seven".