2131123232 has 48 divisors (see below), whose sum is σ = 4960388160. Its totient is φ = 881841408.

The previous prime is 2131123231. The next prime is 2131123243. The reversal of 2131123232 is 2323211312.

It is not an unprimeable number, because it can be changed into a prime (2131123231) 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, 157538 + ... + 170529.

It is an arithmetic number, because the mean of its divisors is an integer number (103341420).

Almost surely, 2^2131123232 is an apocalyptic number.

It is an amenable number.

2131123232 is an abundant number, since it is smaller than the sum of its proper divisors (2829264928).

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

2131123232 is a wasteful number, since it uses less digits than its factorization.

2131123232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328113 (or 328105 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 2131123232 is about 46164.0902867153. The cubic root of 2131123232 is about 1286.8744780841.

Adding to 2131123232 its reverse (2323211312), we get a palindrome (4454334544).

The spelling of 2131123232 in words is "two billion, one hundred thirty-one million, one hundred twenty-three thousand, two hundred thirty-two".