2111231232 has 162 divisors, whose sum is σ = 6691772906. Its totient is φ = 639682560.

The previous prime is 2111231141. The next prime is 2111231261. The reversal of 2111231232 is 2321321112.

It can be written as a sum of positive squares in only one way, i.e., 2110116096 + 1115136 = 45936^2 + 1056^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 274998 + ... + 282570.

Almost surely, 2^2111231232 is an apocalyptic number.

2111231232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111231232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3345886453).

2111231232 is an abundant number, since it is smaller than the sum of its proper divisors (4580541674).

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

2111231232 is a wasteful number, since it uses less digits than its factorization.

2111231232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7617 (or 7589 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2111231232 is about 45948.1363278207. The cubic root of 2111231232 is about 1282.8580407735.

Adding to 2111231232 its reverse (2321321112), we get a palindrome (4432552344).

The spelling of 2111231232 in words is "two billion, one hundred eleven million, two hundred thirty-one thousand, two hundred thirty-two".