1421013241 has 4 divisors (see below), whose sum is σ = 1441027584. Its totient is φ = 1400998900.

The previous prime is 1421013227. The next prime is 1421013283. The reversal of 1421013241 is 1423101241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1421013241 - 2⁹ = 1421012729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421016241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10007065 + ... + 10007206.

It is an arithmetic number, because the mean of its divisors is an integer number (360256896).

Almost surely, 2^1421013241 is an apocalyptic number.

It is an amenable number.

1421013241 is a deficient number, since it is larger than the sum of its proper divisors (20014343).

1421013241 is an equidigital number, since it uses as much as digits as its factorization.

1421013241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20014342.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1421013241 is about 37696.3292775305. The cubic root of 1421013241 is about 1124.2581422795.

Adding to 1421013241 its reverse (1423101241), we get a palindrome (2844114482).

The spelling of 1421013241 in words is "one billion, four hundred twenty-one million, thirteen thousand, two hundred forty-one".