320451451251 has 4 divisors (see below), whose sum is σ = 427268601672. Its totient is φ = 213634300832.

The previous prime is 320451451249. The next prime is 320451451253. The reversal of 320451451251 is 152154154023.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (320451451249) and next prime (320451451253).

It is a cyclic number.

It is not a de Polignac number, because 320451451251 - 2¹ = 320451451249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320451451253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53408575206 + ... + 53408575211.

It is an arithmetic number, because the mean of its divisors is an integer number (106817150418).

Almost surely, 2^320451451251 is an apocalyptic number.

320451451251 is a deficient number, since it is larger than the sum of its proper divisors (106817150421).

320451451251 is a wasteful number, since it uses less digits than its factorization.

320451451251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106817150420.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 320451451251 in words is "three hundred twenty billion, four hundred fifty-one million, four hundred fifty-one thousand, two hundred fifty-one".