1421103443 has 8 divisors (see below), whose sum is σ = 1479978000. Its totient is φ = 1362887008.

The previous prime is 1421103413. The next prime is 1421103449. The reversal of 1421103443 is 3443011241.

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 1421103443 - 2⁶ = 1421103379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421103449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160121 + ... + 168762.

It is an arithmetic number, because the mean of its divisors is an integer number (184997250).

Almost surely, 2^1421103443 is an apocalyptic number.

1421103443 is a deficient number, since it is larger than the sum of its proper divisors (58874557).

1421103443 is a wasteful number, since it uses less digits than its factorization.

1421103443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329061.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1421103443 is about 37697.5256880342. The cubic root of 1421103443 is about 1124.2819300445.

Adding to 1421103443 its reverse (3443011241), we get a palindrome (4864114684).

The spelling of 1421103443 in words is "one billion, four hundred twenty-one million, one hundred three thousand, four hundred forty-three".