1121113434 has 24 divisors (see below), whose sum is σ = 2608305408. Its totient is φ = 320318040.

The previous prime is 1121113423. The next prime is 1121113451. The reversal of 1121113434 is 4343111211.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1121113434.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1906362 + ... + 1906949.

It is an arithmetic number, because the mean of its divisors is an integer number (108679392).

Almost surely, 2^1121113434 is an apocalyptic number.

1121113434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1121113434 is an abundant number, since it is smaller than the sum of its proper divisors (1487191974).

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

1121113434 is a wasteful number, since it uses less digits than its factorization.

1121113434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813330 (or 3813323 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 1121113434 is about 33483.0320311647. The cubic root of 1121113434 is about 1038.8428432671.

Adding to 1121113434 its reverse (4343111211), we get a palindrome (5464224645).

The spelling of 1121113434 in words is "one billion, one hundred twenty-one million, one hundred thirteen thousand, four hundred thirty-four".