10120042 has 4 divisors (see below), whose sum is σ = 15180066. Its totient is φ = 5060020.

The previous prime is 10120039. The next prime is 10120057. The reversal of 10120042 is 24002101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24002101 = 47 ⋅510683.

It can be written as a sum of positive squares in only one way, i.e., 8934121 + 1185921 = 2989^2 + 1089^2 .

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 as a sum of consecutive naturals, namely, 2530009 + ... + 2530012.

Almost surely, 2^10120042 is an apocalyptic number.

10120042 is a deficient number, since it is larger than the sum of its proper divisors (5060024).

10120042 is an equidigital number, since it uses as much as digits as its factorization.

10120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060023.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 10120042 is about 3181.2013454040. The cubic root of 10120042 is about 216.3021178134.

Adding to 10120042 its reverse (24002101), we get a palindrome (34122143).

The spelling of 10120042 in words is "ten million, one hundred twenty thousand, forty-two".