2131585430 has 32 divisors (see below), whose sum is σ = 4190211648. Its totient is φ = 775958400.

The previous prime is 2131585411. The next prime is 2131585439. The reversal of 2131585430 is 345851312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131585439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106241 + ... + 124700.

It is an arithmetic number, because the mean of its divisors is an integer number (130944114).

Almost surely, 2^2131585430 is an apocalyptic number.

2131585430 is a deficient number, since it is larger than the sum of its proper divisors (2058626218).

2131585430 is a wasteful number, since it uses less digits than its factorization.

2131585430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231032.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2131585430 is about 46169.0960491972. The cubic root of 2131585430 is about 1286.9675038036.

The spelling of 2131585430 in words is "two billion, one hundred thirty-one million, five hundred eighty-five thousand, four hundred thirty".