202102120133 has 4 divisors (see below), whose sum is σ = 202203528108. Its totient is φ = 202000712160.

The previous prime is 202102120027. The next prime is 202102120141. The reversal of 202102120133 is 331021201202.

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 85543380484 + 116558739649 = 292478^2 + 341407^2 .

It is a cyclic number.

It is not a de Polignac number, because 202102120133 - 2¹² = 202102116037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102120333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50700998 + ... + 50704983.

It is an arithmetic number, because the mean of its divisors is an integer number (50550882027).

Almost surely, 2^202102120133 is an apocalyptic number.

It is an amenable number.

202102120133 is a deficient number, since it is larger than the sum of its proper divisors (101407975).

202102120133 is a wasteful number, since it uses less digits than its factorization.

202102120133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101407974.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 202102120133 its reverse (331021201202), we get a palindrome (533123321335).

The spelling of 202102120133 in words is "two hundred two billion, one hundred two million, one hundred twenty thousand, one hundred thirty-three".