42110523 has 80 divisors (see below), whose sum is σ = 80498880. Its totient is φ = 21337344.

The previous prime is 42110507. The next prime is 42110569. The reversal of 42110523 is 32501124.

It is not a de Polignac number, because 42110523 - 2⁴ = 42110507 is a prime.

It is a super-2 number, since 2×42110523² = 3546592294667058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42110496 and 42110505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42110503) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 213661 + ... + 213857.

It is an arithmetic number, because the mean of its divisors is an integer number (1006236).

Almost surely, 2^42110523 is an apocalyptic number.

42110523 is a deficient number, since it is larger than the sum of its proper divisors (38388357).

42110523 is a wasteful number, since it uses less digits than its factorization.

42110523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 42110523 is about 6489.2621306278. The cubic root of 42110523 is about 347.9073028966.

Adding to 42110523 its reverse (32501124), we get a palindrome (74611647).

The spelling of 42110523 in words is "forty-two million, one hundred ten thousand, five hundred twenty-three".