1100009942 has 4 divisors (see below), whose sum is σ = 1650014916. Its totient is φ = 550004970.

The previous prime is 1100009941. The next prime is 1100009957. The reversal of 1100009942 is 2499000011.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100009941) 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, 275002484 + ... + 275002487.

It is an arithmetic number, because the mean of its divisors is an integer number (412503729).

Almost surely, 2^1100009942 is an apocalyptic number.

1100009942 is a deficient number, since it is larger than the sum of its proper divisors (550004974).

1100009942 is an equidigital number, since it uses as much as digits as its factorization.

1100009942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550004973.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 1100009942 is about 33166.3977845047. The cubic root of 1100009942 is about 1032.2832254255.

Adding to 1100009942 its reverse (2499000011), we get a palindrome (3599009953).

The spelling of 1100009942 in words is "one billion, one hundred million, nine thousand, nine hundred forty-two".