1420087420901 has 2 divisors, whose sum is σ = 1420087420902. Its totient is φ = 1420087420900.

The previous prime is 1420087420883. The next prime is 1420087420903. The reversal of 1420087420901 is 1090247800241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 755456488900 + 664630932001 = 869170^2 + 815249^2 .

It is an emirp because it is prime and its reverse (1090247800241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420087420901 - 2¹⁸ = 1420087158757 is a prime.

Together with 1420087420903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420087420903) 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, 710043710450 + 710043710451.

It is an arithmetic number, because the mean of its divisors is an integer number (710043710451).

Almost surely, 2^{1420087420901} is an apocalyptic number.

It is an amenable number.

1420087420901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420087420901 is an equidigital number, since it uses as much as digits as its factorization.

1420087420901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 1420087420901 in words is "one trillion, four hundred twenty billion, eighty-seven million, four hundred twenty thousand, nine hundred one".