2131523043 has 16 divisors (see below), whose sum is σ = 3062374560. Its totient is φ = 1310966784.

The previous prime is 2131523041. The next prime is 2131523057. The reversal of 2131523043 is 3403251312.

It is not a de Polignac number, because 2131523043 - 2¹ = 2131523041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131523041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59205 + ... + 88137.

It is an arithmetic number, because the mean of its divisors is an integer number (191398410).

Almost surely, 2^2131523043 is an apocalyptic number.

2131523043 is a deficient number, since it is larger than the sum of its proper divisors (930851517).

2131523043 is a wasteful number, since it uses less digits than its factorization.

2131523043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30838.

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

The square root of 2131523043 is about 46168.4204083267. The cubic root of 2131523043 is about 1286.9549480749.

Adding to 2131523043 its reverse (3403251312), we get a palindrome (5534774355).

The spelling of 2131523043 in words is "two billion, one hundred thirty-one million, five hundred twenty-three thousand, forty-three".