123731203 has 16 divisors (see below), whose sum is σ = 129330432. Its totient is φ = 118300000.

The previous prime is 123731189. The next prime is 123731221. The reversal of 123731203 is 302137321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123731203 - 2¹³ = 123723011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123731233) 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, 492828 + ... + 493078.

It is an arithmetic number, because the mean of its divisors is an integer number (8083152).

Almost surely, 2^123731203 is an apocalyptic number.

123731203 is a deficient number, since it is larger than the sum of its proper divisors (5599229).

123731203 is a wasteful number, since it uses less digits than its factorization.

123731203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 123731203 is about 11123.4528362375. The cubic root of 123731203 is about 498.3025142727.

Adding to 123731203 its reverse (302137321), we get a palindrome (425868524).

The spelling of 123731203 in words is "one hundred twenty-three million, seven hundred thirty-one thousand, two hundred three".