2131440032 has 12 divisors (see below), whose sum is σ = 4196272626. Its totient is φ = 1065720000.

The previous prime is 2131440029. The next prime is 2131440041. The reversal of 2131440032 is 2300441312.

It can be written as a sum of positive squares in only one way, i.e., 1964616976 + 166823056 = 44324^2 + 12916^2 .

It is a super-2 number, since 2×2131440032² = 9086073220024322048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2131439986 and 2131440013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33303719 + ... + 33303782.

Almost surely, 2^2131440032 is an apocalyptic number.

It is an amenable number.

2131440032 is a deficient number, since it is larger than the sum of its proper divisors (2064832594).

2131440032 is an equidigital number, since it uses as much as digits as its factorization.

2131440032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66607511 (or 66607503 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2131440032 is about 46167.5213976232. The cubic root of 2131440032 is about 1286.9382412723.

Adding to 2131440032 its reverse (2300441312), we get a palindrome (4431881344).

The spelling of 2131440032 in words is "two billion, one hundred thirty-one million, four hundred forty thousand, thirty-two".