320133223477 has 2 divisors, whose sum is σ = 320133223478. Its totient is φ = 320133223476.

The previous prime is 320133223453. The next prime is 320133223483. The reversal of 320133223477 is 774322331023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312921647236 + 7211576241 = 559394^2 + 84921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320133223477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320133223877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160066611738 + 160066611739.

It is an arithmetic number, because the mean of its divisors is an integer number (160066611739).

Almost surely, 2^320133223477 is an apocalyptic number.

It is an amenable number.

320133223477 is a deficient number, since it is larger than the sum of its proper divisors (1).

320133223477 is an equidigital number, since it uses as much as digits as its factorization.

320133223477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 37.

The spelling of 320133223477 in words is "three hundred twenty billion, one hundred thirty-three million, two hundred twenty-three thousand, four hundred seventy-seven".