1013421103 has 4 divisors (see below), whose sum is σ = 1013700688. Its totient is φ = 1013141520.

The previous prime is 1013421089. The next prime is 1013421131. The reversal of 1013421103 is 3011243101.

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

It is a cyclic number.

It is not a de Polignac number, because 1013421103 - 2⁹ = 1013420591 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 (1013421803) 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 3 ways as a sum of consecutive naturals, for example, 134283 + ... + 141628.

It is an arithmetic number, because the mean of its divisors is an integer number (253425172).

Almost surely, 2^1013421103 is an apocalyptic number.

1013421103 is a deficient number, since it is larger than the sum of its proper divisors (279585).

1013421103 is an equidigital number, since it uses as much as digits as its factorization.

1013421103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279584.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1013421103 is about 31834.2756003651. The cubic root of 1013421103 is about 1004.4538349049.

Adding to 1013421103 its reverse (3011243101), we get a palindrome (4024664204).

The spelling of 1013421103 in words is "one billion, thirteen million, four hundred twenty-one thousand, one hundred three".