2143102231 has 2 divisors, whose sum is σ = 2143102232. Its totient is φ = 2143102230.

The previous prime is 2143102219. The next prime is 2143102237. The reversal of 2143102231 is 1322013412.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2143102231 - 2¹³ = 2143094039 is a prime.

It is a super-2 number, since 2×2143102231² = 9185774345034354722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2143102199 and 2143102208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143102237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071551115 + 1071551116.

It is an arithmetic number, because the mean of its divisors is an integer number (1071551116).

Almost surely, 2^2143102231 is an apocalyptic number.

2143102231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143102231 is an equidigital number, since it uses as much as digits as its factorization.

2143102231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2143102231 is about 46293.6521674408. The cubic root of 2143102231 is about 1289.2811392559.

Adding to 2143102231 its reverse (1322013412), we get a palindrome (3465115643).

The spelling of 2143102231 in words is "two billion, one hundred forty-three million, one hundred two thousand, two hundred thirty-one".