2131530324 has 48 divisors (see below), whose sum is σ = 6200818176. Its totient is φ = 553644000.

The previous prime is 2131530301. The next prime is 2131530341. The reversal of 2131530324 is 4230351312.

It is a junction number, because it is equal to n+sod(n) for n = 2131530294 and 2131530303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152502 + ... + 1154349.

It is an arithmetic number, because the mean of its divisors is an integer number (129183712).

Almost surely, 2^2131530324 is an apocalyptic number.

It is an amenable number.

2131530324 is an abundant number, since it is smaller than the sum of its proper divisors (4069287852).

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

2131530324 is a wasteful number, since it uses less digits than its factorization.

2131530324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306876 (or 2306874 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2131530324 is about 46168.4992608597. The cubic root of 2131530324 is about 1286.9564134290.

Adding to 2131530324 its reverse (4230351312), we get a palindrome (6361881636).

The spelling of 2131530324 in words is "two billion, one hundred thirty-one million, five hundred thirty thousand, three hundred twenty-four".