23042142123 has 128 divisors (see below), whose sum is σ = 42481926144. Its totient is φ = 10724313600.

The previous prime is 23042142119. The next prime is 23042142127. The reversal of 23042142123 is 32124124032.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23042142119) and next prime (23042142127).

It is not a de Polignac number, because 23042142123 - 2² = 23042142119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23042142093 and 23042142102.

It is not an unprimeable number, because it can be changed into a prime (23042142127) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14284465 + ... + 14286077.

It is an arithmetic number, because the mean of its divisors is an integer number (331890048).

Almost surely, 2^23042142123 is an apocalyptic number.

23042142123 is a deficient number, since it is larger than the sum of its proper divisors (19439784021).

23042142123 is a wasteful number, since it uses less digits than its factorization.

23042142123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23042142123 its reverse (32124124032), we get a palindrome (55166266155).

The spelling of 23042142123 in words is "twenty-three billion, forty-two million, one hundred forty-two thousand, one hundred twenty-three".