2131012543 has 8 divisors (see below), whose sum is σ = 2461490640. Its totient is φ = 1823326080.

The previous prime is 2131012523. The next prime is 2131012547. The reversal of 2131012543 is 3452101312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2131012543 - 2⁵ = 2131012511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131012547) 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, 5697708 + ... + 5698081.

It is an arithmetic number, because the mean of its divisors is an integer number (307686330).

Almost surely, 2^2131012543 is an apocalyptic number.

2131012543 is a deficient number, since it is larger than the sum of its proper divisors (330478097).

2131012543 is a wasteful number, since it uses less digits than its factorization.

2131012543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11395817.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2131012543 is about 46162.8914064100. The cubic root of 2131012543 is about 1286.8521979217.

Adding to 2131012543 its reverse (3452101312), we get a palindrome (5583113855).

The spelling of 2131012543 in words is "two billion, one hundred thirty-one million, twelve thousand, five hundred forty-three".