2131131443 has 8 divisors (see below), whose sum is σ = 2441843040. Its totient is φ = 1821985920.

The previous prime is 2131131437. The next prime is 2131131451. The reversal of 2131131443 is 3441311312.

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 2131131443 - 2¹² = 2131127347 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (2131131463) 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, 388598 + ... + 394043.

It is an arithmetic number, because the mean of its divisors is an integer number (305230380).

Almost surely, 2^2131131443 is an apocalyptic number.

2131131443 is a deficient number, since it is larger than the sum of its proper divisors (310711597).

2131131443 is an equidigital number, since it uses as much as digits as its factorization.

2131131443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783037.

The product of its digits is 864, while the sum is 23.

The square root of 2131131443 is about 46164.1792193904. The cubic root of 2131131443 is about 1286.8761308139.

Adding to 2131131443 its reverse (3441311312), we get a palindrome (5572442755).

The spelling of 2131131443 in words is "two billion, one hundred thirty-one million, one hundred thirty-one thousand, four hundred forty-three".