2111355312 has 40 divisors (see below), whose sum is σ = 5950184640. Its totient is φ = 639804480.

The previous prime is 2111355293. The next prime is 2111355331. The reversal of 2111355312 is 2135531112.

It is an interprime number because it is at equal distance from previous prime (2111355293) and next prime (2111355331).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1998862 + ... + 1999917.

It is an arithmetic number, because the mean of its divisors is an integer number (148754616).

Almost surely, 2^2111355312 is an apocalyptic number.

2111355312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2111355312 is an abundant number, since it is smaller than the sum of its proper divisors (3838829328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2111355312 is a wasteful number, since it uses less digits than its factorization.

2111355312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998801 (or 3998795 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 2111355312 is about 45949.4865259668. The cubic root of 2111355312 is about 1282.8831720657.

Adding to 2111355312 its reverse (2135531112), we get a palindrome (4246886424).

The spelling of 2111355312 in words is "two billion, one hundred eleven million, three hundred fifty-five thousand, three hundred twelve".