1421503102 has 4 divisors (see below), whose sum is σ = 2132254656. Its totient is φ = 710751550.

The previous prime is 1421503091. The next prime is 1421503151. The reversal of 1421503102 is 2013051241.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1421503102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355375774 + ... + 355375777.

It is an arithmetic number, because the mean of its divisors is an integer number (533063664).

Almost surely, 2^1421503102 is an apocalyptic number.

1421503102 is a deficient number, since it is larger than the sum of its proper divisors (710751554).

1421503102 is an equidigital number, since it uses as much as digits as its factorization.

1421503102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710751553.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1421503102 is about 37702.8261805398. The cubic root of 1421503102 is about 1124.3873146499.

Adding to 1421503102 its reverse (2013051241), we get a palindrome (3434554343).

The spelling of 1421503102 in words is "one billion, four hundred twenty-one million, five hundred three thousand, one hundred two".