1421301242 has 4 divisors (see below), whose sum is σ = 2131951866. Its totient is φ = 710650620.

The previous prime is 1421301227. The next prime is 1421301293. The reversal of 1421301242 is 2421031241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1308920041 + 112381201 = 36179^2 + 10601^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355325309 + ... + 355325312.

Almost surely, 2^1421301242 is an apocalyptic number.

1421301242 is a deficient number, since it is larger than the sum of its proper divisors (710650624).

1421301242 is an equidigital number, since it uses as much as digits as its factorization.

1421301242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710650623.

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

The square root of 1421301242 is about 37700.1490978484. The cubic root of 1421301242 is about 1124.3340894013.

Adding to 1421301242 its reverse (2421031241), we get a palindrome (3842332483).

The spelling of 1421301242 in words is "one billion, four hundred twenty-one million, three hundred one thousand, two hundred forty-two".