1020320201233 has 2 divisors, whose sum is σ = 1020320201234. Its totient is φ = 1020320201232.

The previous prime is 1020320201227. The next prime is 1020320201261. The reversal of 1020320201233 is 3321020230201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1012585350529 + 7734850704 = 1006273^2 + 87948^2 .

It is an emirp because it is prime and its reverse (3321020230201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020320201233 - 2²⁵ = 1020286646801 is a prime.

It is a super-2 number, since 2×1020320201233² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1020320201233.

It is not a weakly prime, because it can be changed into another prime (1020320201933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510160100616 + 510160100617.

It is an arithmetic number, because the mean of its divisors is an integer number (510160100617).

Almost surely, 2^{1020320201233} is an apocalyptic number.

It is an amenable number.

1020320201233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020320201233 is an equidigital number, since it uses as much as digits as its factorization.

1020320201233 is an evil number, because the sum of its binary digits is even.

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

Adding to 1020320201233 its reverse (3321020230201), we get a palindrome (4341340431434).

The spelling of 1020320201233 in words is "one trillion, twenty billion, three hundred twenty million, two hundred one thousand, two hundred thirty-three".