142023123 has 24 divisors (see below), whose sum is σ = 224668080. Its totient is φ = 85738560.

The previous prime is 142023097. The next prime is 142023181. The reversal of 142023123 is 321320241.

It is not a de Polignac number, because 142023123 - 2⁹ = 142022611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142023096 and 142023105.

It is not an unprimeable number, because it can be changed into a prime (142023523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23965 + ... + 29297.

It is an arithmetic number, because the mean of its divisors is an integer number (9361170).

Almost surely, 2^142023123 is an apocalyptic number.

142023123 is a deficient number, since it is larger than the sum of its proper divisors (82644957).

142023123 is a wasteful number, since it uses less digits than its factorization.

142023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619 (or 5616 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 142023123 is about 11917.3454678464. The cubic root of 142023123 is about 521.7386611853.

Adding to 142023123 its reverse (321320241), we get a palindrome (463343364).

The spelling of 142023123 in words is "one hundred forty-two million, twenty-three thousand, one hundred twenty-three".