42023243221123 has 16 divisors (see below), whose sum is σ = 44249359968000. Its totient is φ = 39798565421472.

The previous prime is 42023243221117. The next prime is 42023243221129. The reversal of 42023243221123 is 32112234232024.

It is an interprime number because it is at equal distance from previous prime (42023243221117) and next prime (42023243221129).

It is a cyclic number.

It is not a de Polignac number, because 42023243221123 - 2²⁹ = 42022706350211 is a prime.

It is a super-2 number, since 2×42023243221123² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42023243221129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872207448 + ... + 872255626.

It is an arithmetic number, because the mean of its divisors is an integer number (2765584998000).

Almost surely, 2^{42023243221123} is an apocalyptic number.

42023243221123 is a deficient number, since it is larger than the sum of its proper divisors (2226116746877).

42023243221123 is a wasteful number, since it uses less digits than its factorization.

42023243221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62154.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 42023243221123 its reverse (32112234232024), we get a palindrome (74135477453147).

The spelling of 42023243221123 in words is "forty-two trillion, twenty-three billion, two hundred forty-three million, two hundred twenty-one thousand, one hundred twenty-three".