1230020422133 has 4 divisors (see below), whose sum is σ = 1233544836300. Its totient is φ = 1226496007968.

The previous prime is 1230020422093. The next prime is 1230020422159. The reversal of 1230020422133 is 3312240200321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 910770561649 + 319249860484 = 954343^2 + 565022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230020422133 - 2¹⁸ = 1230020159989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1230020422099 and 1230020422108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230020422933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1762206560 + ... + 1762207257.

It is an arithmetic number, because the mean of its divisors is an integer number (308386209075).

Almost surely, 2^{1230020422133} is an apocalyptic number.

It is an amenable number.

1230020422133 is a deficient number, since it is larger than the sum of its proper divisors (3524414167).

1230020422133 is an equidigital number, since it uses as much as digits as its factorization.

1230020422133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524414166.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1230020422133 its reverse (3312240200321), we get a palindrome (4542260622454).

The spelling of 1230020422133 in words is "one trillion, two hundred thirty billion, twenty million, four hundred twenty-two thousand, one hundred thirty-three".