2011121030 has 16 divisors (see below), whose sum is σ = 3620529360. Its totient is φ = 804334752.

The previous prime is 2011121009. The next prime is 2011121033. The reversal of 2011121030 is 301211102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011121033) 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, 125852 + ... + 140928.

It is an arithmetic number, because the mean of its divisors is an integer number (226283085).

Almost surely, 2^2011121030 is an apocalyptic number.

2011121030 is a deficient number, since it is larger than the sum of its proper divisors (1609408330).

2011121030 is a wasteful number, since it uses less digits than its factorization.

2011121030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28423.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2011121030 is about 44845.5240798901. The cubic root of 2011121030 is about 1262.2520047478.

Adding to 2011121030 its reverse (301211102), we get a palindrome (2312332132).

The spelling of 2011121030 in words is "two billion, eleven million, one hundred twenty-one thousand, thirty".