203133232013 has 4 divisors (see below), whose sum is σ = 203289129888. Its totient is φ = 202977334140.

The previous prime is 203133232009. The next prime is 203133232039. The reversal of 203133232013 is 310232331302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310232331302 = 2 ⋅155116165651.

It is a cyclic number.

It is not a de Polignac number, because 203133232013 - 2² = 203133232009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203133232013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203133232073) 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, 77946983 + ... + 77949588.

It is an arithmetic number, because the mean of its divisors is an integer number (50822282472).

Almost surely, 2^203133232013 is an apocalyptic number.

It is an amenable number.

203133232013 is a deficient number, since it is larger than the sum of its proper divisors (155897875).

203133232013 is a wasteful number, since it uses less digits than its factorization.

203133232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155897874.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 203133232013 its reverse (310232331302), we get a palindrome (513365563315).

The spelling of 203133232013 in words is "two hundred three billion, one hundred thirty-three million, two hundred thirty-two thousand, thirteen".