420403411 has 2 divisors, whose sum is σ = 420403412. Its totient is φ = 420403410.

The previous prime is 420403409. The next prime is 420403429. The reversal of 420403411 is 114304024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420403411 - 2¹ = 420403409 is a prime.

Together with 420403409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (420403441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210201705 + 210201706.

It is an arithmetic number, because the mean of its divisors is an integer number (210201706).

Almost surely, 2^420403411 is an apocalyptic number.

420403411 is a deficient number, since it is larger than the sum of its proper divisors (1).

420403411 is an equidigital number, since it uses as much as digits as its factorization.

420403411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 420403411 is about 20503.7413902927. The cubic root of 420403411 is about 749.1269313217.

Adding to 420403411 its reverse (114304024), we get a palindrome (534707435).

It can be divided in two parts, 42040 and 3411, that added together give a triangular number (45451 = T₃₀₁).

The spelling of 420403411 in words is "four hundred twenty million, four hundred three thousand, four hundred eleven".