16232143261 has 2 divisors, whose sum is σ = 16232143262. Its totient is φ = 16232143260.

The previous prime is 16232143259. The next prime is 16232143267. The reversal of 16232143261 is 16234123261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10418080761 + 5814062500 = 102069^2 + 76250^2 .

It is an emirp because it is prime and its reverse (16234123261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16232143261 - 2¹ = 16232143259 is a prime.

Together with 16232143259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16232143267) 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 as a sum of consecutive naturals, namely, 8116071630 + 8116071631.

It is an arithmetic number, because the mean of its divisors is an integer number (8116071631).

Almost surely, 2^16232143261 is an apocalyptic number.

It is an amenable number.

16232143261 is a deficient number, since it is larger than the sum of its proper divisors (1).

16232143261 is an equidigital number, since it uses as much as digits as its factorization.

16232143261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The spelling of 16232143261 in words is "sixteen billion, two hundred thirty-two million, one hundred forty-three thousand, two hundred sixty-one".