42480311 has 2 divisors, whose sum is σ = 42480312. Its totient is φ = 42480310.

The previous prime is 42480307. The next prime is 42480337. The reversal of 42480311 is 11308424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42480311 - 2² = 42480307 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42480341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21240155 + 21240156.

It is an arithmetic number, because the mean of its divisors is an integer number (21240156).

Almost surely, 2^42480311 is an apocalyptic number.

42480311 is a deficient number, since it is larger than the sum of its proper divisors (1).

42480311 is an equidigital number, since it uses as much as digits as its factorization.

42480311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 42480311 is about 6517.6921529020. The cubic root of 42480311 is about 348.9227038228.

Adding to 42480311 its reverse (11308424), we get a palindrome (53788735).

The spelling of 42480311 in words is "forty-two million, four hundred eighty thousand, three hundred eleven".