2011120530 has 16 divisors (see below), whose sum is σ = 4826689344. Its totient is φ = 536298800.

The previous prime is 2011120471. The next prime is 2011120537. The reversal of 2011120530 is 350211102.

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

It is not an unprimeable number, because it can be changed into a prime (2011120537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33518646 + ... + 33518705.

It is an arithmetic number, because the mean of its divisors is an integer number (301668084).

Almost surely, 2^2011120530 is an apocalyptic number.

2011120530 is an abundant number, since it is smaller than the sum of its proper divisors (2815568814).

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

2011120530 is a wasteful number, since it uses less digits than its factorization.

2011120530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67037361.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2011120530 is about 44845.5185051974. The cubic root of 2011120530 is about 1262.2519001418.

Adding to 2011120530 its reverse (350211102), we get a palindrome (2361331632).

The spelling of 2011120530 in words is "two billion, eleven million, one hundred twenty thousand, five hundred thirty".