215231743483 has 2 divisors, whose sum is σ = 215231743484. Its totient is φ = 215231743482.

The previous prime is 215231743421. The next prime is 215231743499. The reversal of 215231743483 is 384347132512.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215231743483 is a prime.

It is not a weakly prime, because it can be changed into another prime (215231740483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107615871741 + 107615871742.

It is an arithmetic number, because the mean of its divisors is an integer number (107615871742).

Almost surely, 2^215231743483 is an apocalyptic number.

215231743483 is a deficient number, since it is larger than the sum of its proper divisors (1).

215231743483 is an equidigital number, since it uses as much as digits as its factorization.

215231743483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 43.

Adding to 215231743483 its reverse (384347132512), we get a palindrome (599578875995).

The spelling of 215231743483 in words is "two hundred fifteen billion, two hundred thirty-one million, seven hundred forty-three thousand, four hundred eighty-three".