1421321040199 has 2 divisors, whose sum is σ = 1421321040200. Its totient is φ = 1421321040198.

The previous prime is 1421321040107. The next prime is 1421321040263. The reversal of 1421321040199 is 9910401231241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421321040199 - 2²¹ = 1421318943047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421321043199) 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, 710660520099 + 710660520100.

It is an arithmetic number, because the mean of its divisors is an integer number (710660520100).

Almost surely, 2^{1421321040199} is an apocalyptic number.

1421321040199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421321040199 is an equidigital number, since it uses as much as digits as its factorization.

1421321040199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 1421321040199 in words is "one trillion, four hundred twenty-one billion, three hundred twenty-one million, forty thousand, one hundred ninety-nine".