1421331241 has 4 divisors (see below), whose sum is σ = 1550543184. Its totient is φ = 1292119300.

The previous prime is 1421331229. The next prime is 1421331251.

1421331241 is nontrivially palindromic in base 10.

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 1421331241 - 2⁷ = 1421331113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421331211) 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, 64605955 + ... + 64605976.

It is an arithmetic number, because the mean of its divisors is an integer number (387635796).

Almost surely, 2^1421331241 is an apocalyptic number.

1421331241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1421331241 is a deficient number, since it is larger than the sum of its proper divisors (129211943).

1421331241 is a wasteful number, since it uses less digits than its factorization.

1421331241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129211942.

The product of its digits is 576, while the sum is 22.

The square root of 1421331241 is about 37700.5469588970. The cubic root of 1421331241 is about 1124.3419996787.

It can be divided in two parts, 14213 and 31241, that added together give a palindrome (45454).

The spelling of 1421331241 in words is "one billion, four hundred twenty-one million, three hundred thirty-one thousand, two hundred forty-one".