142113123 has 40 divisors (see below), whose sum is σ = 218496960. Its totient is φ = 92018160.

The previous prime is 142113109. The next prime is 142113173. The reversal of 142113123 is 321311241.

142113123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142113123 - 2⁴ = 142113107 is a prime.

It is a super-2 number, since 2×142113123² = 40392279457626258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142113096 and 142113105.

It is not an unprimeable number, because it can be changed into a prime (142113173) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 625936 + ... + 626162.

It is an arithmetic number, because the mean of its divisors is an integer number (5462424).

Almost surely, 2^142113123 is an apocalyptic number.

142113123 is a deficient number, since it is larger than the sum of its proper divisors (76383837).

142113123 is a wasteful number, since it uses less digits than its factorization.

142113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 420 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 142113123 is about 11921.1208785080. The cubic root of 142113123 is about 521.8488464453.

Adding to 142113123 its reverse (321311241), we get a palindrome (463424364).

The spelling of 142113123 in words is "one hundred forty-two million, one hundred thirteen thousand, one hundred twenty-three".