2011213044 has 48 divisors (see below), whose sum is σ = 5221218240. Its totient is φ = 669509280.

The previous prime is 2011213037. The next prime is 2011213073. The reversal of 2011213044 is 4403121102.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71439 + ... + 95529.

It is an arithmetic number, because the mean of its divisors is an integer number (108775380).

Almost surely, 2^2011213044 is an apocalyptic number.

It is an amenable number.

2011213044 is an abundant number, since it is smaller than the sum of its proper divisors (3210005196).

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

2011213044 is a wasteful number, since it uses less digits than its factorization.

2011213044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24877 (or 24869 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2011213044 is about 44846.5499676397. The cubic root of 2011213044 is about 1262.2712548879.

Adding to 2011213044 its reverse (4403121102), we get a palindrome (6414334146).

The spelling of 2011213044 in words is "two billion, eleven million, two hundred thirteen thousand, forty-four".