1420371331 has 2 divisors, whose sum is σ = 1420371332. Its totient is φ = 1420371330.

The previous prime is 1420371319. The next prime is 1420371373. The reversal of 1420371331 is 1331730241.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420371331 is a prime.

It is a super-2 number, since 2×1420371331² = 4034909435853423122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1420371296 and 1420371305.

It is not a weakly prime, because it can be changed into another prime (1420371431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710185665 + 710185666.

It is an arithmetic number, because the mean of its divisors is an integer number (710185666).

Almost surely, 2^1420371331 is an apocalyptic number.

1420371331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420371331 is an equidigital number, since it uses as much as digits as its factorization.

1420371331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1420371331 is about 37687.8140915602. The cubic root of 1420371331 is about 1124.0888308762.

The spelling of 1420371331 in words is "one billion, four hundred twenty million, three hundred seventy-one thousand, three hundred thirty-one".