2011321234 has 16 divisors (see below), whose sum is σ = 3254771520. Its totient is φ = 926669520.

The previous prime is 2011321229. The next prime is 2011321237. The reversal of 2011321234 is 4321231102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2011321237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52894 + ... + 82585.

It is an arithmetic number, because the mean of its divisors is an integer number (203423220).

Almost surely, 2^2011321234 is an apocalyptic number.

2011321234 is a deficient number, since it is larger than the sum of its proper divisors (1243450286).

2011321234 is a wasteful number, since it uses less digits than its factorization.

2011321234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136065.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2011321234 is about 44847.7561757553. The cubic root of 2011321234 is about 1262.2938884388.

Adding to 2011321234 its reverse (4321231102), we get a palindrome (6332552336).

The spelling of 2011321234 in words is "two billion, eleven million, three hundred twenty-one thousand, two hundred thirty-four".