320034311251 has 4 divisors (see below), whose sum is σ = 320333689600. Its totient is φ = 319734932904.

The previous prime is 320034311231. The next prime is 320034311321. The reversal of 320034311251 is 152113430023.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 320034311251 - 2¹³ = 320034303059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320034311221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149687571 + ... + 149689708.

It is an arithmetic number, because the mean of its divisors is an integer number (80083422400).

Almost surely, 2^320034311251 is an apocalyptic number.

320034311251 is a deficient number, since it is larger than the sum of its proper divisors (299378349).

320034311251 is a wasteful number, since it uses less digits than its factorization.

320034311251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299378348.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 320034311251 its reverse (152113430023), we get a palindrome (472147741274).

The spelling of 320034311251 in words is "three hundred twenty billion, thirty-four million, three hundred eleven thousand, two hundred fifty-one".