2111125321 has 8 divisors (see below), whose sum is σ = 2222741600. Its totient is φ = 1999559520.

The previous prime is 2111125277. The next prime is 2111125339. The reversal of 2111125321 is 1235211112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111125321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (2111125351) 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, 98326 + ... + 117856.

It is an arithmetic number, because the mean of its divisors is an integer number (277842700).

Almost surely, 2^2111125321 is an apocalyptic number.

It is an amenable number.

2111125321 is a deficient number, since it is larger than the sum of its proper divisors (111616279).

2111125321 is a wasteful number, since it uses less digits than its factorization.

2111125321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25239.

The product of its digits is 120, while the sum is 19.

The square root of 2111125321 is about 45946.9838074274. The cubic root of 2111125321 is about 1282.8365886704.

Adding to 2111125321 its reverse (1235211112), we get a palindrome (3346336433).

The spelling of 2111125321 in words is "two billion, one hundred eleven million, one hundred twenty-five thousand, three hundred twenty-one".