320142034391 has 2 divisors, whose sum is σ = 320142034392. Its totient is φ = 320142034390.

The previous prime is 320142034367. The next prime is 320142034411. The reversal of 320142034391 is 193430241023.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320142034391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320142034321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160071017195 + 160071017196.

It is an arithmetic number, because the mean of its divisors is an integer number (160071017196).

Almost surely, 2^320142034391 is an apocalyptic number.

320142034391 is a deficient number, since it is larger than the sum of its proper divisors (1).

320142034391 is an equidigital number, since it uses as much as digits as its factorization.

320142034391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 320142034391 in words is "three hundred twenty billion, one hundred forty-two million, thirty-four thousand, three hundred ninety-one".