320121947683 has 2 divisors, whose sum is σ = 320121947684. Its totient is φ = 320121947682.

The previous prime is 320121947669. The next prime is 320121947689. The reversal of 320121947683 is 386749121023.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320121947683 is a prime.

It is a super-2 number, since 2×320121947683² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320121947689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160060973841 + 160060973842.

It is an arithmetic number, because the mean of its divisors is an integer number (160060973842).

Almost surely, 2^320121947683 is an apocalyptic number.

320121947683 is a deficient number, since it is larger than the sum of its proper divisors (1).

320121947683 is an equidigital number, since it uses as much as digits as its factorization.

320121947683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 320121947683 in words is "three hundred twenty billion, one hundred twenty-one million, nine hundred forty-seven thousand, six hundred eighty-three".