203123132 has 12 divisors (see below), whose sum is σ = 356075160. Its totient is φ = 101387376.

The previous prime is 203123131. The next prime is 203123147. The reversal of 203123132 is 231321302.

It is a self number, because there is not a number n which added to its sum of digits gives 203123132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203123131) 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, 40907 + ... + 45602.

It is an arithmetic number, because the mean of its divisors is an integer number (29672930).

Almost surely, 2^203123132 is an apocalyptic number.

It is an amenable number.

203123132 is a deficient number, since it is larger than the sum of its proper divisors (152952028).

203123132 is a wasteful number, since it uses less digits than its factorization.

203123132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87100 (or 87098 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 203123132 is about 14252.1272798134. The cubic root of 203123132 is about 587.8318699582.

Adding to 203123132 its reverse (231321302), we get a palindrome (434444434).

The spelling of 203123132 in words is "two hundred three million, one hundred twenty-three thousand, one hundred thirty-two".