42811114021 has 4 divisors (see below), whose sum is σ = 46104276652. Its totient is φ = 39517951392.

The previous prime is 42811113997. The next prime is 42811114043. The reversal of 42811114021 is 12041111824.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3573050625 + 39238063396 = 59775^2 + 198086^2 .

It is a cyclic number.

It is not a de Polignac number, because 42811114021 - 2¹⁵ = 42811081253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42811114321) 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, 1646581296 + ... + 1646581321.

It is an arithmetic number, because the mean of its divisors is an integer number (11526069163).

Almost surely, 2^42811114021 is an apocalyptic number.

It is an amenable number.

42811114021 is a deficient number, since it is larger than the sum of its proper divisors (3293162631).

42811114021 is a wasteful number, since it uses less digits than its factorization.

42811114021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293162630.

The product of its (nonzero) digits is 512, while the sum is 25.

Adding to 42811114021 its reverse (12041111824), we get a palindrome (54852225845).

The spelling of 42811114021 in words is "forty-two billion, eight hundred eleven million, one hundred fourteen thousand, twenty-one".