142123023 has 24 divisors (see below), whose sum is σ = 235622400. Its totient is φ = 80864784.

The previous prime is 142122991. The next prime is 142123039. The reversal of 142123023 is 320321241.

It is not a de Polignac number, because 142123023 - 2⁵ = 142122991 is a prime.

It is a super-3 number, since 3×142123023³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142122987 and 142123005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142123063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10338 + ... + 19776.

It is an arithmetic number, because the mean of its divisors is an integer number (9817600).

Almost surely, 2^142123023 is an apocalyptic number.

142123023 is a deficient number, since it is larger than the sum of its proper divisors (93499377).

142123023 is a wasteful number, since it uses less digits than its factorization.

142123023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9691 (or 9688 counting only the distinct ones).

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

The square root of 142123023 is about 11921.5361006877. The cubic root of 142123023 is about 521.8609639836.

Adding to 142123023 its reverse (320321241), we get a palindrome (462444264).

The spelling of 142123023 in words is "one hundred forty-two million, one hundred twenty-three thousand, twenty-three".