231103021203 has 24 divisors (see below), whose sum is σ = 338425404720. Its totient is φ = 151941484800.

The previous prime is 231103021199. The next prime is 231103021211. The reversal of 231103021203 is 302120301132.

231103021203 is a `hidden beast` number, since 231 + 10 + 302 + 120 + 3 = 666.

It is not a de Polignac number, because 231103021203 - 2² = 231103021199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231103021003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9697903 + ... + 9721703.

It is an arithmetic number, because the mean of its divisors is an integer number (14101058530).

Almost surely, 2^231103021203 is an apocalyptic number.

231103021203 is a deficient number, since it is larger than the sum of its proper divisors (107322383517).

231103021203 is a wasteful number, since it uses less digits than its factorization.

231103021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38659 (or 38656 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231103021203 its reverse (302120301132), we get a palindrome (533223322335).

The spelling of 231103021203 in words is "two hundred thirty-one billion, one hundred three million, twenty-one thousand, two hundred three".