203320122331 has 4 divisors (see below), whose sum is σ = 203578471432. Its totient is φ = 203061773232.

The previous prime is 203320122259. The next prime is 203320122353. The reversal of 203320122331 is 133221023302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203320122331 is a prime.

It is a super-2 number, since 2×203320122331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203320122631) 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, 129173370 + ... + 129174943.

It is an arithmetic number, because the mean of its divisors is an integer number (50894617858).

Almost surely, 2^203320122331 is an apocalyptic number.

203320122331 is a deficient number, since it is larger than the sum of its proper divisors (258349101).

203320122331 is an equidigital number, since it uses as much as digits as its factorization.

203320122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258349100.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 203320122331 its reverse (133221023302), we get a palindrome (336541145633).

The spelling of 203320122331 in words is "two hundred three billion, three hundred twenty million, one hundred twenty-two thousand, three hundred thirty-one".