142111103 has 4 divisors (see below), whose sum is σ = 142208160. Its totient is φ = 142014048.

The previous prime is 142111097. The next prime is 142111121. The reversal of 142111103 is 301111241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301111241 = 43 ⋅7002587.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142111103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142111133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46298 + ... + 49271.

It is an arithmetic number, because the mean of its divisors is an integer number (35552040).

Almost surely, 2^142111103 is an apocalyptic number.

142111103 is a deficient number, since it is larger than the sum of its proper divisors (97057).

142111103 is an equidigital number, since it uses as much as digits as its factorization.

142111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97056.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 142111103 is about 11921.0361546302. The cubic root of 142111103 is about 521.8463739088.

Adding to 142111103 its reverse (301111241), we get a palindrome (443222344).

The spelling of 142111103 in words is "one hundred forty-two million, one hundred eleven thousand, one hundred three".