42113023 has 4 divisors (see below), whose sum is σ = 43944048. Its totient is φ = 40282000.

The previous prime is 42113009. The next prime is 42113047. The reversal of 42113023 is 32031124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42113023 - 2⁵ = 42112991 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 42112988 and 42113006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42113003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915478 + ... + 915523.

It is an arithmetic number, because the mean of its divisors is an integer number (10986012).

Almost surely, 2^42113023 is an apocalyptic number.

42113023 is a deficient number, since it is larger than the sum of its proper divisors (1831025).

42113023 is a wasteful number, since it uses less digits than its factorization.

42113023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831024.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 42113023 is about 6489.4547536754. The cubic root of 42113023 is about 347.9141875657.

Adding to 42113023 its reverse (32031124), we get a palindrome (74144147).

The spelling of 42113023 in words is "forty-two million, one hundred thirteen thousand, twenty-three".