219868082131 has 2 divisors, whose sum is σ = 219868082132. Its totient is φ = 219868082130.

The previous prime is 219868082111. The next prime is 219868082227. The reversal of 219868082131 is 131280868912.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 219868082131 - 2¹¹ = 219868080083 is a prime.

It is a super-2 number, since 2×219868082131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (219868082111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109934041065 + 109934041066.

It is an arithmetic number, because the mean of its divisors is an integer number (109934041066).

Almost surely, 2^219868082131 is an apocalyptic number.

219868082131 is a deficient number, since it is larger than the sum of its proper divisors (1).

219868082131 is an equidigital number, since it uses as much as digits as its factorization.

219868082131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 49.

The spelling of 219868082131 in words is "two hundred nineteen billion, eight hundred sixty-eight million, eighty-two thousand, one hundred thirty-one".