1321001420419 has 12 divisors (see below), whose sum is σ = 1403455053424. Its totient is φ = 1243138875264.

The previous prime is 1321001420363. The next prime is 1321001420423. The reversal of 1321001420419 is 9140241001231.

It is not a de Polignac number, because 1321001420419 - 2³⁹ = 771245606531 is a prime.

It is a super-2 number, since 2×1321001420419² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321001420489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2043514 + ... + 2611120.

Almost surely, 2^{1321001420419} is an apocalyptic number.

1321001420419 is a deficient number, since it is larger than the sum of its proper divisors (82453633005).

1321001420419 is an equidigital number, since it uses as much as digits as its factorization.

1321001420419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575694 (or 575677 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 1321001420419 in words is "one trillion, three hundred twenty-one billion, one million, four hundred twenty thousand, four hundred nineteen".