203120101133 has 4 divisors (see below), whose sum is σ = 203185437180. Its totient is φ = 203054765088.

The previous prime is 203120101123. The next prime is 203120101187. The reversal of 203120101133 is 331101021302.

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 22768697449 + 180351403684 = 150893^2 + 424678^2 .

It is a cyclic number.

It is not a de Polignac number, because 203120101133 - 2¹⁴ = 203120084749 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 (203120101123) 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, 32663360 + ... + 32669577.

It is an arithmetic number, because the mean of its divisors is an integer number (50796359295).

Almost surely, 2^203120101133 is an apocalyptic number.

It is an amenable number.

203120101133 is a deficient number, since it is larger than the sum of its proper divisors (65336047).

203120101133 is an equidigital number, since it uses as much as digits as its factorization.

203120101133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65336046.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 203120101133 its reverse (331101021302), we get a palindrome (534221122435).

The spelling of 203120101133 in words is "two hundred three billion, one hundred twenty million, one hundred one thousand, one hundred thirty-three".