1420691803 has 2 divisors, whose sum is σ = 1420691804. Its totient is φ = 1420691802.

The previous prime is 1420691801. The next prime is 1420691813. The reversal of 1420691803 is 3081960241.

It is a weak prime.

It is an emirp because it is prime and its reverse (3081960241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1420691803 - 2¹ = 1420691801 is a prime.

It is a super-2 number, since 2×1420691803² = 4036730398222781618, which contains 22 as substring.

Together with 1420691801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1420691801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710345901 + 710345902.

It is an arithmetic number, because the mean of its divisors is an integer number (710345902).

Almost surely, 2^1420691803 is an apocalyptic number.

1420691803 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420691803 is an equidigital number, since it uses as much as digits as its factorization.

1420691803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1420691803 is about 37692.0655178248. The cubic root of 1420691803 is about 1124.1733655558.

The spelling of 1420691803 in words is "one billion, four hundred twenty million, six hundred ninety-one thousand, eight hundred three".