320235269987 has 2 divisors, whose sum is σ = 320235269988. Its totient is φ = 320235269986.

The previous prime is 320235269951. The next prime is 320235270011. The reversal of 320235269987 is 789962532023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320235269987 - 2¹² = 320235265891 is a prime.

It is not a weakly prime, because it can be changed into another prime (320235269917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160117634993 + 160117634994.

It is an arithmetic number, because the mean of its divisors is an integer number (160117634994).

Almost surely, 2^320235269987 is an apocalyptic number.

320235269987 is a deficient number, since it is larger than the sum of its proper divisors (1).

320235269987 is an equidigital number, since it uses as much as digits as its factorization.

320235269987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 320235269987 in words is "three hundred twenty billion, two hundred thirty-five million, two hundred sixty-nine thousand, nine hundred eighty-seven".