42011011321 has 4 divisors (see below), whose sum is σ = 44222117200. Its totient is φ = 39799905444.

The previous prime is 42011011279. The next prime is 42011011331. The reversal of 42011011321 is 12311011024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42011011321 - 2¹⁵ = 42010978553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42011011295 and 42011011304.

It is not an unprimeable number, because it can be changed into a prime (42011011331) 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, 1105552911 + ... + 1105552948.

It is an arithmetic number, because the mean of its divisors is an integer number (11055529300).

Almost surely, 2^42011011321 is an apocalyptic number.

It is an amenable number.

42011011321 is a deficient number, since it is larger than the sum of its proper divisors (2211105879).

42011011321 is a wasteful number, since it uses less digits than its factorization.

42011011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211105878.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 42011011321 its reverse (12311011024), we get a palindrome (54322022345).

The spelling of 42011011321 in words is "forty-two billion, eleven million, eleven thousand, three hundred twenty-one".