10142111 has 4 divisors (see below), whose sum is σ = 11590992. Its totient is φ = 8693232.

The previous prime is 10142087. The next prime is 10142113. The reversal of 10142111 is 11124101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10142111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10142092 and 10142101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10142113) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 724430 + ... + 724443.

It is an arithmetic number, because the mean of its divisors is an integer number (2897748).

Almost surely, 2^10142111 is an apocalyptic number.

10142111 is a deficient number, since it is larger than the sum of its proper divisors (1448881).

10142111 is an equidigital number, since it uses as much as digits as its factorization.

10142111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448880.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 10142111 is about 3184.6681145765. The cubic root of 10142111 is about 216.4592352672.

Adding to 10142111 its reverse (11124101), we get a palindrome (21266212).

It can be divided in two parts, 1014 and 2111, that added together give a 5-th power (3125 = 5⁵).

The spelling of 10142111 in words is "ten million, one hundred forty-two thousand, one hundred eleven".