1421440103 has 8 divisors (see below), whose sum is σ = 1497813120. Its totient is φ = 1345223160.

The previous prime is 1421440087. The next prime is 1421440147. The reversal of 1421440103 is 3010441241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421440103 - 2⁴ = 1421440087 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 (1421440903) 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 7 ways as a sum of consecutive naturals, for example, 20075 + ... + 56972.

It is an arithmetic number, because the mean of its divisors is an integer number (187226640).

Almost surely, 2^1421440103 is an apocalyptic number.

1421440103 is a deficient number, since it is larger than the sum of its proper divisors (76373017).

1421440103 is an equidigital number, since it uses as much as digits as its factorization.

1421440103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78037.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1421440103 is about 37701.9907034098. The cubic root of 1421440103 is about 1124.3707039878.

Adding to 1421440103 its reverse (3010441241), we get a palindrome (4431881344).

The spelling of 1421440103 in words is "one billion, four hundred twenty-one million, four hundred forty thousand, one hundred three".