1420323051 has 16 divisors (see below), whose sum is σ = 2164829184. Its totient is φ = 811415424.

The previous prime is 1420323049. The next prime is 1420323119. The reversal of 1420323051 is 1503230241.

It is not a de Polignac number, because 1420323051 - 2¹ = 1420323049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1420323011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157891 + ... + 166643.

It is an arithmetic number, because the mean of its divisors is an integer number (135301824).

Almost surely, 2^1420323051 is an apocalyptic number.

1420323051 is a deficient number, since it is larger than the sum of its proper divisors (744506133).

1420323051 is an equidigital number, since it uses as much as digits as its factorization.

1420323051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16490.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1420323051 is about 37687.1735607753. The cubic root of 1420323051 is about 1124.0760943890.

Adding to 1420323051 its reverse (1503230241), we get a palindrome (2923553292).

The spelling of 1420323051 in words is "one billion, four hundred twenty million, three hundred twenty-three thousand, fifty-one".