1421300243 has 6 divisors (see below), whose sum is σ = 1562255772. Its totient is φ = 1292091020.

The previous prime is 1421300201. The next prime is 1421300281. The reversal of 1421300243 is 3420031241.

It is not a de Polignac number, because 1421300243 - 2²² = 1417105939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421300843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5873021 + ... + 5873262.

It is an arithmetic number, because the mean of its divisors is an integer number (260375962).

Almost surely, 2^1421300243 is an apocalyptic number.

1421300243 is a deficient number, since it is larger than the sum of its proper divisors (140955529).

1421300243 is a wasteful number, since it uses less digits than its factorization.

1421300243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11746305 (or 11746294 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1421300243 is about 37700.1358485616. The cubic root of 1421300243 is about 1124.3338259784. Note that the first 3 decimals are identical.

Adding to 1421300243 its reverse (3420031241), we get a palindrome (4841331484).

The spelling of 1421300243 in words is "one billion, four hundred twenty-one million, three hundred thousand, two hundred forty-three".