203110031323 has 8 divisors (see below), whose sum is σ = 208076747760. Its totient is φ = 198143925120.

The previous prime is 203110031303. The next prime is 203110031329. The reversal of 203110031323 is 323130011302.

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

It is a cyclic number.

It is not a de Polignac number, because 203110031323 - 2⁵ = 203110031291 is a prime.

It is a super-2 number, since 2×203110031323² (a number of 23 digits) contains 22 as substring.

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 203110031323.

It is not an unprimeable number, because it can be changed into a prime (203110031329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561636 + ... + 849502.

It is an arithmetic number, because the mean of its divisors is an integer number (26009593470).

Almost surely, 2^203110031323 is an apocalyptic number.

203110031323 is a deficient number, since it is larger than the sum of its proper divisors (4966716437).

203110031323 is a wasteful number, since it uses less digits than its factorization.

203110031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305117.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 203110031323 its reverse (323130011302), we get a palindrome (526240042625).

The spelling of 203110031323 in words is "two hundred three billion, one hundred ten million, thirty-one thousand, three hundred twenty-three".