42023311 has 8 divisors (see below), whose sum is σ = 46819584. Its totient is φ = 37389720.

The previous prime is 42023309. The next prime is 42023347. The reversal of 42023311 is 11332024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42023311 - 2¹ = 42023309 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 (42023351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40125 + ... + 41158.

It is an arithmetic number, because the mean of its divisors is an integer number (5852448).

Almost surely, 2^42023311 is an apocalyptic number.

42023311 is a deficient number, since it is larger than the sum of its proper divisors (4796273).

42023311 is a wasteful number, since it uses less digits than its factorization.

42023311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81341.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 42023311 is about 6482.5389316224. The cubic root of 42023311 is about 347.6669618463. Note that the first 3 decimals are identical.

Adding to 42023311 its reverse (11332024), we get a palindrome (53355335).

The spelling of 42023311 in words is "forty-two million, twenty-three thousand, three hundred eleven".