2111230311 has 8 divisors (see below), whose sum is σ = 2818456560. Its totient is φ = 1405745472.

The previous prime is 2111230309. The next prime is 2111230327. The reversal of 2111230311 is 1130321112.

It is a happy number.

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

It is not a de Polignac number, because 2111230311 - 2¹ = 2111230309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111230301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432520 + ... + 437373.

It is an arithmetic number, because the mean of its divisors is an integer number (352307070).

Almost surely, 2^2111230311 is an apocalyptic number.

2111230311 is a deficient number, since it is larger than the sum of its proper divisors (707226249).

2111230311 is an equidigital number, since it uses as much as digits as its factorization.

2111230311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870705.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2111230311 is about 45948.1263056504. The cubic root of 2111230311 is about 1282.8578542295.

Adding to 2111230311 its reverse (1130321112), we get a palindrome (3241551423).

The spelling of 2111230311 in words is "two billion, one hundred eleven million, two hundred thirty thousand, three hundred eleven".