203122202313 has 8 divisors (see below), whose sum is σ = 285083792800. Its totient is φ = 128287706688.

The previous prime is 203122202281. The next prime is 203122202333. The reversal of 203122202313 is 313202221302.

It is a happy number.

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

It is not a de Polignac number, because 203122202313 - 2⁵ = 203122202281 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 203122202313.

It is not an unprimeable number, because it can be changed into a prime (203122202333) 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, 1781773648 + ... + 1781773761.

It is an arithmetic number, because the mean of its divisors is an integer number (35635474100).

Almost surely, 2^203122202313 is an apocalyptic number.

It is an amenable number.

203122202313 is a deficient number, since it is larger than the sum of its proper divisors (81961590487).

203122202313 is a wasteful number, since it uses less digits than its factorization.

203122202313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563547431.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203122202313 its reverse (313202221302), we get a palindrome (516324423615).

The spelling of 203122202313 in words is "two hundred three billion, one hundred twenty-two million, two hundred two thousand, three hundred thirteen".