320221010223031 has 2 divisors, whose sum is σ = 320221010223032. Its totient is φ = 320221010223030.

The previous prime is 320221010223019. The next prime is 320221010223047. The reversal of 320221010223031 is 130322010122023.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320221010223031 is a prime.

It is a super-2 number, since 2×320221010223031² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320221010222993 and 320221010223011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320221010223931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160110505111515 + 160110505111516.

It is an arithmetic number, because the mean of its divisors is an integer number (160110505111516).

Almost surely, 2^{320221010223031} is an apocalyptic number.

320221010223031 is a deficient number, since it is larger than the sum of its proper divisors (1).

320221010223031 is an equidigital number, since it uses as much as digits as its factorization.

320221010223031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 320221010223031 its reverse (130322010122023), we get a palindrome (450543020345054).

The spelling of 320221010223031 in words is "three hundred twenty trillion, two hundred twenty-one billion, ten million, two hundred twenty-three thousand, thirty-one".