203112322013 has 8 divisors (see below), whose sum is σ = 203833371456. Its totient is φ = 202391708800.

The previous prime is 203112321961. The next prime is 203112322027. The reversal of 203112322013 is 310223211302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203112322013 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 (203112322073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838370 + ... + 1053132.

It is an arithmetic number, because the mean of its divisors is an integer number (25479171432).

Almost surely, 2^203112322013 is an apocalyptic number.

It is an amenable number.

203112322013 is a deficient number, since it is larger than the sum of its proper divisors (721049443).

203112322013 is a wasteful number, since it uses less digits than its factorization.

203112322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218115.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203112322013 its reverse (310223211302), we get a palindrome (513335533315).

The spelling of 203112322013 in words is "two hundred three billion, one hundred twelve million, three hundred twenty-two thousand, thirteen".