203122113 has 8 divisors (see below), whose sum is σ = 271138368. Its totient is φ = 135260304.

The previous prime is 203122093. The next prime is 203122121. The reversal of 203122113 is 311221302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203122113 - 2⁸ = 203121857 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 203122092 and 203122101.

It is not an unprimeable number, because it can be changed into a prime (203123113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35506 + ... + 40827.

It is an arithmetic number, because the mean of its divisors is an integer number (33892296).

Almost surely, 2^203122113 is an apocalyptic number.

It is an amenable number.

203122113 is a deficient number, since it is larger than the sum of its proper divisors (68016255).

203122113 is an equidigital number, since it uses as much as digits as its factorization.

203122113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77223.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 203122113 is about 14252.0915307193. The cubic root of 203122113 is about 587.8308869721.

Adding to 203122113 its reverse (311221302), we get a palindrome (514343415).

It can be divided in two parts, 2031 and 22113, that multiplied together give a triangular number (44911503 = T₉₄₇₇).

The spelling of 203122113 in words is "two hundred three million, one hundred twenty-two thousand, one hundred thirteen".