42311611 has 2 divisors, whose sum is σ = 42311612. Its totient is φ = 42311610.

The previous prime is 42311593. The next prime is 42311617. The reversal of 42311611 is 11611324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42311611 - 2¹⁵ = 42278843 is a prime.

It is not a weakly prime, because it can be changed into another prime (42311617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21155805 + 21155806.

It is an arithmetic number, because the mean of its divisors is an integer number (21155806).

Almost surely, 2^42311611 is an apocalyptic number.

42311611 is a deficient number, since it is larger than the sum of its proper divisors (1).

42311611 is an equidigital number, since it uses as much as digits as its factorization.

42311611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 42311611 is about 6504.7375811788. The cubic root of 42311611 is about 348.4602044406.

Adding to 42311611 its reverse (11611324), we get a palindrome (53922935).

The spelling of 42311611 in words is "forty-two million, three hundred eleven thousand, six hundred eleven".