320002051 has 4 divisors (see below), whose sum is σ = 320087152. Its totient is φ = 319916952.

The previous prime is 320002049. The next prime is 320002063. The reversal of 320002051 is 150200023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150200023 = 6793 ⋅22111.

It is a cyclic number.

It is not a de Polignac number, because 320002051 - 2¹ = 320002049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320002021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36636 + ... + 44521.

It is an arithmetic number, because the mean of its divisors is an integer number (80021788).

Almost surely, 2^320002051 is an apocalyptic number.

320002051 is a deficient number, since it is larger than the sum of its proper divisors (85101).

320002051 is an equidigital number, since it uses as much as digits as its factorization.

320002051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85100.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 320002051 is about 17888.6011470992. The cubic root of 320002051 is about 683.9918399845.

Adding to 320002051 its reverse (150200023), we get a palindrome (470202074).

The spelling of 320002051 in words is "three hundred twenty million, two thousand, fifty-one".