1021230113201 has 2 divisors, whose sum is σ = 1021230113202. Its totient is φ = 1021230113200.

The previous prime is 1021230113039. The next prime is 1021230113221. The reversal of 1021230113201 is 1023110321201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 979337848225 + 41892264976 = 989615^2 + 204676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021230113201 - 2²² = 1021225918897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021230113201.

It is not a weakly prime, because it can be changed into another prime (1021230113221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510615056600 + 510615056601.

It is an arithmetic number, because the mean of its divisors is an integer number (510615056601).

Almost surely, 2^{1021230113201} is an apocalyptic number.

It is an amenable number.

1021230113201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021230113201 is an equidigital number, since it uses as much as digits as its factorization.

1021230113201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1021230113201 its reverse (1023110321201), we get a palindrome (2044340434402).

The spelling of 1021230113201 in words is "one trillion, twenty-one billion, two hundred thirty million, one hundred thirteen thousand, two hundred one".