2131712430 has 16 divisors (see below), whose sum is σ = 5116109904. Its totient is φ = 568456640.

The previous prime is 2131712423. The next prime is 2131712431. The reversal of 2131712430 is 342171312.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2131712430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131712431) 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, 35528511 + ... + 35528570.

It is an arithmetic number, because the mean of its divisors is an integer number (319756869).

Almost surely, 2^2131712430 is an apocalyptic number.

2131712430 is an abundant number, since it is smaller than the sum of its proper divisors (2984397474).

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

2131712430 is a wasteful number, since it uses less digits than its factorization.

2131712430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71057091.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 2131712430 is about 46170.4714075999. The cubic root of 2131712430 is about 1286.9930624988.

Adding to 2131712430 its reverse (342171312), we get a palindrome (2473883742).

The spelling of 2131712430 in words is "two billion, one hundred thirty-one million, seven hundred twelve thousand, four hundred thirty".