42201311 has 2 divisors, whose sum is σ = 42201312. Its totient is φ = 42201310.

The previous prime is 42201307. The next prime is 42201317. The reversal of 42201311 is 11310224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42201311 - 2² = 42201307 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42201317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21100655 + 21100656.

It is an arithmetic number, because the mean of its divisors is an integer number (21100656).

Almost surely, 2^42201311 is an apocalyptic number.

42201311 is a deficient number, since it is larger than the sum of its proper divisors (1).

42201311 is an equidigital number, since it uses as much as digits as its factorization.

42201311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 42201311 is about 6496.2536126601. The cubic root of 42201311 is about 348.1571465146.

Adding to 42201311 its reverse (11310224), we get a palindrome (53511535).

The spelling of 42201311 in words is "forty-two million, two hundred one thousand, three hundred eleven".