2143115331 has 8 divisors (see below), whose sum is σ = 3265699584. Its totient is φ = 1224637320.

The previous prime is 2143115323. The next prime is 2143115339. The reversal of 2143115331 is 1335113412.

It is an interprime number because it is at equal distance from previous prime (2143115323) and next prime (2143115339).

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

It is not a de Polignac number, because 2143115331 - 2³ = 2143115323 is a prime.

It is a super-2 number, since 2×2143115331² = 9185886643934479122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2143115339) 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 7 ways as a sum of consecutive naturals, for example, 51026535 + ... + 51026576.

It is an arithmetic number, because the mean of its divisors is an integer number (408212448).

Almost surely, 2^2143115331 is an apocalyptic number.

2143115331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2143115331 is a deficient number, since it is larger than the sum of its proper divisors (1122584253).

2143115331 is a wasteful number, since it uses less digits than its factorization.

2143115331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102053121.

The product of its digits is 1080, while the sum is 24.

The square root of 2143115331 is about 46293.7936553055. The cubic root of 2143115331 is about 1289.2837662186.

Adding to 2143115331 its reverse (1335113412), we get a palindrome (3478228743).

The spelling of 2143115331 in words is "two billion, one hundred forty-three million, one hundred fifteen thousand, three hundred thirty-one".