203423101 has 16 divisors (see below), whose sum is σ = 245145600. Its totient is φ = 164898288.

The previous prime is 203423093. The next prime is 203423107. The reversal of 203423101 is 101324302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 203423101 - 2³ = 203423093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203423107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110676 + ... + 112498.

It is an arithmetic number, because the mean of its divisors is an integer number (15321600).

Almost surely, 2^203423101 is an apocalyptic number.

It is an amenable number.

203423101 is a deficient number, since it is larger than the sum of its proper divisors (41722499).

203423101 is a wasteful number, since it uses less digits than its factorization.

203423101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 203423101 is about 14262.6470544566. The cubic root of 203423101 is about 588.1210945392.

Adding to 203423101 its reverse (101324302), we get a palindrome (304747403).

The spelling of 203423101 in words is "two hundred three million, four hundred twenty-three thousand, one hundred one".