320400142967 has 2 divisors, whose sum is σ = 320400142968. Its totient is φ = 320400142966.

The previous prime is 320400142957. The next prime is 320400143009. The reversal of 320400142967 is 769241004023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320400142967 - 2³⁰ = 319326401143 is a prime.

It is a super-2 number, since 2×320400142967² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320400142967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320400142957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160200071483 + 160200071484.

It is an arithmetic number, because the mean of its divisors is an integer number (160200071484).

Almost surely, 2^320400142967 is an apocalyptic number.

320400142967 is a deficient number, since it is larger than the sum of its proper divisors (1).

320400142967 is an equidigital number, since it uses as much as digits as its factorization.

320400142967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 320400142967 in words is "three hundred twenty billion, four hundred million, one hundred forty-two thousand, nine hundred sixty-seven".