2011322040 has 128 divisors (see below), whose sum is σ = 7426460160. Its totient is φ = 424364544.

The previous prime is 2011322039. The next prime is 2011322051. The reversal of 2011322040 is 402231102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81174 + ... + 103013.

It is an arithmetic number, because the mean of its divisors is an integer number (58019220).

Almost surely, 2^2011322040 is an apocalyptic number.

2011322040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011322040 is an abundant number, since it is smaller than the sum of its proper divisors (5415138120).

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

2011322040 is a wasteful number, since it uses less digits than its factorization.

2011322040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184221 (or 184217 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2011322040 is about 44847.7651617112. The cubic root of 2011322040 is about 1262.2940570525.

Adding to 2011322040 its reverse (402231102), we get a palindrome (2413553142).

The spelling of 2011322040 in words is "two billion, eleven million, three hundred twenty-two thousand, forty".