1421200411 has 2 divisors, whose sum is σ = 1421200412. Its totient is φ = 1421200410.

The previous prime is 1421200381. The next prime is 1421200463. The reversal of 1421200411 is 1140021241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421200411 - 2⁵ = 1421200379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421200481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710600205 + 710600206.

It is an arithmetic number, because the mean of its divisors is an integer number (710600206).

Almost surely, 2^1421200411 is an apocalyptic number.

1421200411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421200411 is an equidigital number, since it uses as much as digits as its factorization.

1421200411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1421200411 is about 37698.8117982517. The cubic root of 1421200411 is about 1124.3075009934.

Adding to 1421200411 its reverse (1140021241), we get a palindrome (2561221652).

The spelling of 1421200411 in words is "one billion, four hundred twenty-one million, two hundred thousand, four hundred eleven".