322143223951 has 2 divisors, whose sum is σ = 322143223952. Its totient is φ = 322143223950.

The previous prime is 322143223949. The next prime is 322143224017. The reversal of 322143223951 is 159322341223.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 322143223951 - 2¹ = 322143223949 is a prime.

Together with 322143223949, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 322143223951.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322143223151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161071611975 + 161071611976.

It is an arithmetic number, because the mean of its divisors is an integer number (161071611976).

Almost surely, 2^322143223951 is an apocalyptic number.

322143223951 is a deficient number, since it is larger than the sum of its proper divisors (1).

322143223951 is an equidigital number, since it uses as much as digits as its factorization.

322143223951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

The spelling of 322143223951 in words is "three hundred twenty-two billion, one hundred forty-three million, two hundred twenty-three thousand, nine hundred fifty-one".