11231203133 has 2 divisors, whose sum is σ = 11231203134. Its totient is φ = 11231203132.

The previous prime is 11231203111. The next prime is 11231203141. The reversal of 11231203133 is 33130213211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9768752569 + 1462450564 = 98837^2 + 38242^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231203133 - 2³⁰ = 10157461309 is a prime.

It is a super-2 number, since 2×11231203133² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231203733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615601566 + 5615601567.

It is an arithmetic number, because the mean of its divisors is an integer number (5615601567).

Almost surely, 2^11231203133 is an apocalyptic number.

It is an amenable number.

11231203133 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231203133 is an equidigital number, since it uses as much as digits as its factorization.

11231203133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11231203133 its reverse (33130213211), we get a palindrome (44361416344).

The spelling of 11231203133 in words is "eleven billion, two hundred thirty-one million, two hundred three thousand, one hundred thirty-three".