421313611 has 2 divisors, whose sum is σ = 421313612. Its totient is φ = 421313610.

The previous prime is 421313603. The next prime is 421313713. The reversal of 421313611 is 116313124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421313611 - 2³ = 421313603 is a prime.

It is not a weakly prime, because it can be changed into another prime (421310611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210656805 + 210656806.

It is an arithmetic number, because the mean of its divisors is an integer number (210656806).

Almost surely, 2^421313611 is an apocalyptic number.

421313611 is a deficient number, since it is larger than the sum of its proper divisors (1).

421313611 is an equidigital number, since it uses as much as digits as its factorization.

421313611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 421313611 is about 20525.9253384592. The cubic root of 421313611 is about 749.6671773643.

Adding to 421313611 its reverse (116313124), we get a palindrome (537626735).

It can be divided in two parts, 421 and 313611, that multiplied together give a palindrome (132030231).

The spelling of 421313611 in words is "four hundred twenty-one million, three hundred thirteen thousand, six hundred eleven".