2142231132 has 48 divisors (see below), whose sum is σ = 5522694912. Its totient is φ = 642850560.

The previous prime is 2142231101. The next prime is 2142231137. The reversal of 2142231132 is 2311322412.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2142231099 and 2142231108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142231137) 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, 223594 + ... + 232977.

It is an arithmetic number, because the mean of its divisors is an integer number (115056144).

Almost surely, 2^2142231132 is an apocalyptic number.

It is an amenable number.

2142231132 is an abundant number, since it is smaller than the sum of its proper divisors (3380463780).

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

2142231132 is a wasteful number, since it uses less digits than its factorization.

2142231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456618 (or 456616 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 2142231132 is about 46284.2428046522. The cubic root of 2142231132 is about 1289.1064324383.

Adding to 2142231132 its reverse (2311322412), we get a palindrome (4453553544).

The spelling of 2142231132 in words is "two billion, one hundred forty-two million, two hundred thirty-one thousand, one hundred thirty-two".