2111323001 has 4 divisors (see below), whose sum is σ = 2111650404. Its totient is φ = 2110995600.

The previous prime is 2111322947. The next prime is 2111323013. The reversal of 2111323001 is 1003231112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 889470976 + 1221852025 = 29824^2 + 34955^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111323001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2111323061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153830 + ... + 166991.

It is an arithmetic number, because the mean of its divisors is an integer number (527912601).

Almost surely, 2^2111323001 is an apocalyptic number.

It is an amenable number.

2111323001 is a deficient number, since it is larger than the sum of its proper divisors (327403).

2111323001 is an equidigital number, since it uses as much as digits as its factorization.

2111323001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327402.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2111323001 is about 45949.1349320093. The cubic root of 2111323001 is about 1282.8766278570.

Adding to 2111323001 its reverse (1003231112), we get a palindrome (3114554113).

The spelling of 2111323001 in words is "two billion, one hundred eleven million, three hundred twenty-three thousand, one".