2111231001 has 16 divisors (see below), whose sum is σ = 3176775360. Its totient is φ = 1235411520.

The previous prime is 2111230993. The next prime is 2111231027. The reversal of 2111231001 is 1001321112.

It is not a de Polignac number, because 2111231001 - 2³ = 2111230993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111232001) 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, 1102090 + ... + 1104003.

It is an arithmetic number, because the mean of its divisors is an integer number (198548460).

Almost surely, 2^2111231001 is an apocalyptic number.

It is an amenable number.

2111231001 is a deficient number, since it is larger than the sum of its proper divisors (1065544359).

2111231001 is a wasteful number, since it uses less digits than its factorization.

2111231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206136.

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

The square root of 2111231001 is about 45948.1338141170. The cubic root of 2111231001 is about 1282.8579939856.

Adding to 2111231001 its reverse (1001321112), we get a palindrome (3112552113).

The spelling of 2111231001 in words is "two billion, one hundred eleven million, two hundred thirty-one thousand, one".