2011003434 has 96 divisors (see below), whose sum is σ = 5176267200. Its totient is φ = 557383680.

The previous prime is 2011003427. The next prime is 2011003447. The reversal of 2011003434 is 4343001102.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99882 + ... + 118314.

It is an arithmetic number, because the mean of its divisors is an integer number (53919450).

Almost surely, 2^2011003434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011003434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2588133600).

2011003434 is an abundant number, since it is smaller than the sum of its proper divisors (3165263766).

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

2011003434 is a wasteful number, since it uses less digits than its factorization.

2011003434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500 (or 18497 counting only the distinct ones).

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

The square root of 2011003434 is about 44844.2129376802. The cubic root of 2011003434 is about 1262.2274017730.

Adding to 2011003434 its reverse (4343001102), we get a palindrome (6354004536).

The spelling of 2011003434 in words is "two billion, eleven million, three thousand, four hundred thirty-four".