1013205442 has 4 divisors (see below), whose sum is σ = 1519808166. Its totient is φ = 506602720.

The previous prime is 1013205439. The next prime is 1013205443. The reversal of 1013205442 is 2445023101.

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., 839202961 + 174002481 = 28969^2 + 13191^2 .

It is not an unprimeable number, because it can be changed into a prime (1013205443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253301359 + ... + 253301362.

Almost surely, 2^1013205442 is an apocalyptic number.

1013205442 is a deficient number, since it is larger than the sum of its proper divisors (506602724).

1013205442 is an equidigital number, since it uses as much as digits as its factorization.

1013205442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506602723.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1013205442 is about 31830.8881748531. Note that the first 3 decimals coincide. The cubic root of 1013205442 is about 1004.3825789431.

Adding to 1013205442 its reverse (2445023101), we get a palindrome (3458228543).

The spelling of 1013205442 in words is "one billion, thirteen million, two hundred five thousand, four hundred forty-two".