123041403 has 16 divisors (see below), whose sum is σ = 188570400. Its totient is φ = 79198560.

The previous prime is 123041383. The next prime is 123041411. The reversal of 123041403 is 304140321.

It is not a de Polignac number, because 123041403 - 2⁶ = 123041339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123041423) 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, 77788 + ... + 79353.

It is an arithmetic number, because the mean of its divisors is an integer number (11785650).

Almost surely, 2^123041403 is an apocalyptic number.

123041403 is a deficient number, since it is larger than the sum of its proper divisors (65528997).

123041403 is a wasteful number, since it uses less digits than its factorization.

123041403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157179 (or 157173 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 123041403 is about 11092.4029407518. The cubic root of 123041403 is about 497.3747778742.

Adding to 123041403 its reverse (304140321), we get a palindrome (427181724).

The spelling of 123041403 in words is "one hundred twenty-three million, forty-one thousand, four hundred three".