42227023 has 2 divisors, whose sum is σ = 42227024. Its totient is φ = 42227022.

The previous prime is 42226981. The next prime is 42227033. The reversal of 42227023 is 32072224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42227023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42226985 and 42227003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42227033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21113511 + 21113512.

It is an arithmetic number, because the mean of its divisors is an integer number (21113512).

Almost surely, 2^42227023 is an apocalyptic number.

42227023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42227023 is an equidigital number, since it uses as much as digits as its factorization.

42227023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 42227023 is about 6498.2322980946. The cubic root of 42227023 is about 348.2278394143.

Adding to 42227023 its reverse (32072224), we get a palindrome (74299247).

The spelling of 42227023 in words is "forty-two million, two hundred twenty-seven thousand, twenty-three".