2131545324 has 24 divisors (see below), whose sum is σ = 5235375040. Its totient is φ = 673119504.

The previous prime is 2131545307. The next prime is 2131545347. The reversal of 2131545324 is 4235451312.

It is a junction number, because it is equal to n+sod(n) for n = 2131545291 and 2131545300.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4674214 + ... + 4674669.

Almost surely, 2^2131545324 is an apocalyptic number.

It is an amenable number.

2131545324 is an abundant number, since it is smaller than the sum of its proper divisors (3103829716).

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

2131545324 is a wasteful number, since it uses less digits than its factorization.

2131545324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348909 (or 9348907 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 2131545324 is about 46168.6617089991. The cubic root of 2131545324 is about 1286.9594322774.

Adding to 2131545324 its reverse (4235451312), we get a palindrome (6366996636).

The spelling of 2131545324 in words is "two billion, one hundred thirty-one million, five hundred forty-five thousand, three hundred twenty-four".