421311413 has 4 divisors (see below), whose sum is σ = 421397100. Its totient is φ = 421225728.

The previous prime is 421311353. The next prime is 421311419. The reversal of 421311413 is 314113124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 274465489 + 146845924 = 16567^2 + 12118^2 .

It is a cyclic number.

It is not a de Polignac number, because 421311413 - 2⁶ = 421311349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421311419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34988 + ... + 45461.

It is an arithmetic number, because the mean of its divisors is an integer number (105349275).

Almost surely, 2^421311413 is an apocalyptic number.

It is an amenable number.

421311413 is a deficient number, since it is larger than the sum of its proper divisors (85687).

421311413 is an equidigital number, since it uses as much as digits as its factorization.

421311413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85686.

The product of its digits is 288, while the sum is 20.

The square root of 421311413 is about 20525.8717963452. The cubic root of 421311413 is about 749.6658736868.

Adding to 421311413 its reverse (314113124), we get a palindrome (735424537).

The spelling of 421311413 in words is "four hundred twenty-one million, three hundred eleven thousand, four hundred thirteen".