101231203 has 4 divisors (see below), whose sum is σ = 101276928. Its totient is φ = 101185480.

The previous prime is 101231191. The next prime is 101231227. The reversal of 101231203 is 302132101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302132101 = 419 ⋅721079.

It is a cyclic number.

It is not a de Polignac number, because 101231203 - 2⁹ = 101230691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101231293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19363 + ... + 24028.

It is an arithmetic number, because the mean of its divisors is an integer number (25319232).

Almost surely, 2^101231203 is an apocalyptic number.

101231203 is a deficient number, since it is larger than the sum of its proper divisors (45725).

101231203 is an equidigital number, since it uses as much as digits as its factorization.

101231203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45724.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 101231203 is about 10061.3718249551. The cubic root of 101231203 is about 466.0560313182.

Adding to 101231203 its reverse (302132101), we get a palindrome (403363304).

The spelling of 101231203 in words is "one hundred one million, two hundred thirty-one thousand, two hundred three".