201231110003 has 32 divisors (see below), whose sum is σ = 257874969600. Its totient is φ = 155658511680.

The previous prime is 201231109993. The next prime is 201231110009. The reversal of 201231110003 is 300011132102.

It is not a de Polignac number, because 201231110003 - 2²⁰ = 201230061427 is a prime.

It is a super-3 number, since 3×201231110003³ (a number of 35 digits) contains 333 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 201231110003.

It is not an unprimeable number, because it can be changed into a prime (201231110009) 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 31 ways as a sum of consecutive naturals, for example, 322250 + ... + 711552.

It is an arithmetic number, because the mean of its divisors is an integer number (8058592800).

Almost surely, 2^201231110003 is an apocalyptic number.

201231110003 is a deficient number, since it is larger than the sum of its proper divisors (56643859597).

201231110003 is a wasteful number, since it uses less digits than its factorization.

201231110003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389472 (or 389458 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 201231110003 its reverse (300011132102), we get a palindrome (501242242105).

The spelling of 201231110003 in words is "two hundred one billion, two hundred thirty-one million, one hundred ten thousand, three".