321032020123 has 2 divisors, whose sum is σ = 321032020124. Its totient is φ = 321032020122.

The previous prime is 321032020121. The next prime is 321032020151. The reversal of 321032020123 is 321020230123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321032020123 - 2¹ = 321032020121 is a prime.

Together with 321032020121, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 321032020123.

It is not a weakly prime, because it can be changed into another prime (321032020121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160516010061 + 160516010062.

It is an arithmetic number, because the mean of its divisors is an integer number (160516010062).

Almost surely, 2^321032020123 is an apocalyptic number.

321032020123 is a deficient number, since it is larger than the sum of its proper divisors (1).

321032020123 is an equidigital number, since it uses as much as digits as its factorization.

321032020123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 321032020123 its reverse (321020230123), we get a palindrome (642052250246).

The spelling of 321032020123 in words is "three hundred twenty-one billion, thirty-two million, twenty thousand, one hundred twenty-three".