42111131323 has 4 divisors (see below), whose sum is σ = 42117846400. Its totient is φ = 42104416248.

The previous prime is 42111131317. The next prime is 42111131339. The reversal of 42111131323 is 32313111124.

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-42111131323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42111131294 and 42111131303.

It is not an unprimeable number, because it can be changed into a prime (42111131723) 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, 3348123 + ... + 3360676.

It is an arithmetic number, because the mean of its divisors is an integer number (10529461600).

Almost surely, 2^42111131323 is an apocalyptic number.

42111131323 is a deficient number, since it is larger than the sum of its proper divisors (6715077).

42111131323 is an equidigital number, since it uses as much as digits as its factorization.

42111131323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715076.

The product of its digits is 432, while the sum is 22.

Adding to 42111131323 its reverse (32313111124), we get a palindrome (74424242447).

The spelling of 42111131323 in words is "forty-two billion, one hundred eleven million, one hundred thirty-one thousand, three hundred twenty-three".