203311101013 has 4 divisors (see below), whose sum is σ = 203312426560. Its totient is φ = 203309775468.

The previous prime is 203311100989. The next prime is 203311101023. The reversal of 203311101013 is 310101113302.

203311101013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 203311101013 - 2¹³ = 203311092821 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 (203311101023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397245 + ... + 751282.

It is an arithmetic number, because the mean of its divisors is an integer number (50828106640).

Almost surely, 2^203311101013 is an apocalyptic number.

It is an amenable number.

203311101013 is a deficient number, since it is larger than the sum of its proper divisors (1325547).

203311101013 is a wasteful number, since it uses less digits than its factorization.

203311101013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325546.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 203311101013 its reverse (310101113302), we get a palindrome (513412214315).

The spelling of 203311101013 in words is "two hundred three billion, three hundred eleven million, one hundred one thousand, thirteen".