42111010523 has 4 divisors (see below), whose sum is σ = 43941924048. Its totient is φ = 40280097000.

The previous prime is 42111010517. The next prime is 42111010531. The reversal of 42111010523 is 32501011124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42111010523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42111010495 and 42111010504.

It is not an unprimeable number, because it can be changed into a prime (42111013523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915456728 + ... + 915456773.

It is an arithmetic number, because the mean of its divisors is an integer number (10985481012).

Almost surely, 2^42111010523 is an apocalyptic number.

42111010523 is a deficient number, since it is larger than the sum of its proper divisors (1830913525).

42111010523 is a wasteful number, since it uses less digits than its factorization.

42111010523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830913524.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 42111010523 its reverse (32501011124), we get a palindrome (74612021647).

The spelling of 42111010523 in words is "forty-two billion, one hundred eleven million, ten thousand, five hundred twenty-three".