101423042 has 20 divisors (see below), whose sum is σ = 177488166. Its totient is φ = 43464960.

The previous prime is 101423033. The next prime is 101423087. The reversal of 101423042 is 240324101.

It can be written as a sum of positive squares in only one way, i.e., 76930441 + 24492601 = 8771^2 + 4949^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 101423042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5759 + ... + 15362.

Almost surely, 2^101423042 is an apocalyptic number.

101423042 is a deficient number, since it is larger than the sum of its proper divisors (76065124).

101423042 is an frugal number, since it uses more digits than its factorization.

101423042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21151 (or 21130 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 101423042 is about 10070.9007541530. The cubic root of 101423042 is about 466.3502466132.

Adding to 101423042 its reverse (240324101), we get a palindrome (341747143).

The spelling of 101423042 in words is "one hundred one million, four hundred twenty-three thousand, forty-two".