2111012321 has 16 divisors (see below), whose sum is σ = 2351388480. Its totient is φ = 1879096320.

The previous prime is 2111012317. The next prime is 2111012333. The reversal of 2111012321 is 1232101112.

It is a cyclic number.

It is not a de Polignac number, because 2111012321 - 2² = 2111012317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111012296 and 2111012305.

It is not an unprimeable number, because it can be changed into a prime (2111012311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102161 + ... + 121073.

It is an arithmetic number, because the mean of its divisors is an integer number (146961780).

Almost surely, 2^2111012321 is an apocalyptic number.

It is an amenable number.

2111012321 is a deficient number, since it is larger than the sum of its proper divisors (240376159).

2111012321 is a wasteful number, since it uses less digits than its factorization.

2111012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19136.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2111012321 is about 45945.7541128666. The cubic root of 2111012321 is about 1282.8136999106.

Adding to 2111012321 its reverse (1232101112), we get a palindrome (3343113433).

The spelling of 2111012321 in words is "two billion, one hundred eleven million, twelve thousand, three hundred twenty-one".