42200023 has 2 divisors, whose sum is σ = 42200024. Its totient is φ = 42200022.

The previous prime is 42199999. The next prime is 42200077. The reversal of 42200023 is 32000224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42200023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42199976 and 42200012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42200923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21100011 + 21100012.

It is an arithmetic number, because the mean of its divisors is an integer number (21100012).

Almost surely, 2^42200023 is an apocalyptic number.

42200023 is a deficient number, since it is larger than the sum of its proper divisors (1).

42200023 is an equidigital number, since it uses as much as digits as its factorization.

42200023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 42200023 is about 6496.1544778430. The cubic root of 42200023 is about 348.1536045159.

Adding to 42200023 its reverse (32000224), we get a palindrome (74200247).

The spelling of 42200023 in words is "forty-two million, two hundred thousand, twenty-three".