1201201320133 has 12 divisors (see below), whose sum is σ = 1244121262020. Its totient is φ = 1159714484096.

The previous prime is 1201201320113. The next prime is 1201201320149. The reversal of 1201201320133 is 3310231021021.

It can be written as a sum of positive squares in 6 ways, for example, as 390016487169 + 811184832964 = 624513^2 + 900658^2 .

It is not a de Polignac number, because 1201201320133 - 2⁵ = 1201201320101 is a prime.

It is a super-2 number, since 2×1201201320133² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201201320133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201201320113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21492441 + ... + 21548257.

It is an arithmetic number, because the mean of its divisors is an integer number (103676771835).

Almost surely, 2^{1201201320133} is an apocalyptic number.

It is an amenable number.

1201201320133 is a deficient number, since it is larger than the sum of its proper divisors (42919941887).

1201201320133 is an equidigital number, since it uses as much as digits as its factorization.

1201201320133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81464 (or 81435 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1201201320133 its reverse (3310231021021), we get a palindrome (4511432341154).

The spelling of 1201201320133 in words is "one trillion, two hundred one billion, two hundred one million, three hundred twenty thousand, one hundred thirty-three".