203351210013 has 16 divisors (see below), whose sum is σ = 318243336320. Its totient is φ = 113060131776.

The previous prime is 203351209993. The next prime is 203351210047. The reversal of 203351210013 is 310012153302.

It is not a de Polignac number, because 203351210013 - 2⁸ = 203351209757 is a prime.

It is a super-2 number, since 2×203351210013² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203351211013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130855858 + ... + 130857411.

It is an arithmetic number, because the mean of its divisors is an integer number (19890208520).

Almost surely, 2^203351210013 is an apocalyptic number.

It is an amenable number.

203351210013 is a deficient number, since it is larger than the sum of its proper divisors (114892126307).

203351210013 is a wasteful number, since it uses less digits than its factorization.

203351210013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261713316.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 203351210013 its reverse (310012153302), we get a palindrome (513363363315).

The spelling of 203351210013 in words is "two hundred three billion, three hundred fifty-one million, two hundred ten thousand, thirteen".