100123042 has 16 divisors (see below), whose sum is σ = 154752120. Its totient is φ = 48560512.

The previous prime is 100123039. The next prime is 100123057. The reversal of 100123042 is 240321001.

It can be written as a sum of positive squares in 4 ways, for example, as 99620361 + 502681 = 9981^2 + 709^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4128 + ... + 14740.

Almost surely, 2^100123042 is an apocalyptic number.

100123042 is a deficient number, since it is larger than the sum of its proper divisors (54629078).

100123042 is a wasteful number, since it uses less digits than its factorization.

100123042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10757.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 100123042 is about 10006.1502087466. The cubic root of 100123042 is about 464.3491754606.

Adding to 100123042 its reverse (240321001), we get a palindrome (340444043).

The spelling of 100123042 in words is "one hundred million, one hundred twenty-three thousand, forty-two".