1100343042 has 20 divisors (see below), whose sum is σ = 2465583846. Its totient is φ = 366780960.

The previous prime is 1100342981. The next prime is 1100343053. The reversal of 1100343042 is 2403430011.

It can be written as a sum of positive squares in only one way, i.e., 1091575521 + 8767521 = 33039^2 + 2961^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 in 9 ways as a sum of consecutive naturals, for example, 3395959 + ... + 3396282.

Almost surely, 2^1100343042 is an apocalyptic number.

1100343042 is an abundant number, since it is smaller than the sum of its proper divisors (1365240804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100343042 is an equidigital number, since it uses as much as digits as its factorization.

1100343042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6792255 (or 6792246 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1100343042 is about 33171.4190531548. The cubic root of 1100343042 is about 1032.3874120111.

Adding to 1100343042 its reverse (2403430011), we get a palindrome (3503773053).

It can be divided in two parts, 11003 and 43042, that added together give a palindrome (54045).

The spelling of 1100343042 in words is "one billion, one hundred million, three hundred forty-three thousand, forty-two".