203113321133 has 2 divisors, whose sum is σ = 203113321134. Its totient is φ = 203113321132.

The previous prime is 203113321121. The next prime is 203113321141. The reversal of 203113321133 is 331123311302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199990523209 + 3122797924 = 447203^2 + 55882^2 .

It is a cyclic number.

It is not a de Polignac number, because 203113321133 - 2¹² = 203113317037 is a prime.

It is a super-3 number, since 3×203113321133³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203113321099 and 203113321108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203112321133) 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 as a sum of consecutive naturals, namely, 101556660566 + 101556660567.

It is an arithmetic number, because the mean of its divisors is an integer number (101556660567).

Almost surely, 2^203113321133 is an apocalyptic number.

It is an amenable number.

203113321133 is a deficient number, since it is larger than the sum of its proper divisors (1).

203113321133 is an equidigital number, since it uses as much as digits as its factorization.

203113321133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 203113321133 its reverse (331123311302), we get a palindrome (534236632435).

The spelling of 203113321133 in words is "two hundred three billion, one hundred thirteen million, three hundred twenty-one thousand, one hundred thirty-three".