2143321337 has 2 divisors, whose sum is σ = 2143321338. Its totient is φ = 2143321336.

The previous prime is 2143321333. The next prime is 2143321363. The reversal of 2143321337 is 7331233412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2025360016 + 117961321 = 45004^2 + 10861^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143321337 - 2² = 2143321333 is a prime.

It is not a weakly prime, because it can be changed into another prime (2143321333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071660668 + 1071660669.

It is an arithmetic number, because the mean of its divisors is an integer number (1071660669).

Almost surely, 2^2143321337 is an apocalyptic number.

It is an amenable number.

2143321337 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143321337 is an equidigital number, since it uses as much as digits as its factorization.

2143321337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 29.

The square root of 2143321337 is about 46296.0185869152. The cubic root of 2143321337 is about 1289.3250755029.

Adding to 2143321337 its reverse (7331233412), we get a palindrome (9474554749).

The spelling of 2143321337 in words is "two billion, one hundred forty-three million, three hundred twenty-one thousand, three hundred thirty-seven".