2143001131 has 4 divisors (see below), whose sum is σ = 2147402032. Its totient is φ = 2138600232.

The previous prime is 2143001129. The next prime is 2143001167. The reversal of 2143001131 is 1311003412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2143001131 - 2¹ = 2143001129 is a prime.

It is a super-2 number, since 2×2143001131² = 9184907694934558322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143001831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2199720 + ... + 2200693.

It is an arithmetic number, because the mean of its divisors is an integer number (536850508).

Almost surely, 2^2143001131 is an apocalyptic number.

2143001131 is a deficient number, since it is larger than the sum of its proper divisors (4400901).

2143001131 is an equidigital number, since it uses as much as digits as its factorization.

2143001131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400900.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2143001131 is about 46292.5602121982. The cubic root of 2143001131 is about 1289.2608651612.

Adding to 2143001131 its reverse (1311003412), we get a palindrome (3454004543).

The spelling of 2143001131 in words is "two billion, one hundred forty-three million, one thousand, one hundred thirty-one".