320988471943 has 2 divisors, whose sum is σ = 320988471944. Its totient is φ = 320988471942.

The previous prime is 320988471877. The next prime is 320988471953. The reversal of 320988471943 is 349174889023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320988471943 - 2²¹ = 320986374791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320988471953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160494235971 + 160494235972.

It is an arithmetic number, because the mean of its divisors is an integer number (160494235972).

Almost surely, 2^320988471943 is an apocalyptic number.

320988471943 is a deficient number, since it is larger than the sum of its proper divisors (1).

320988471943 is an equidigital number, since it uses as much as digits as its factorization.

320988471943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 320988471943 in words is "three hundred twenty billion, nine hundred eighty-eight million, four hundred seventy-one thousand, nine hundred forty-three".