83513781222127 has 2 divisors, whose sum is σ = 83513781222128. Its totient is φ = 83513781222126.

The previous prime is 83513781222101. The next prime is 83513781222197. The reversal of 83513781222127 is 72122218731538.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83513781222127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83513781222197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41756890611063 + 41756890611064.

It is an arithmetic number, because the mean of its divisors is an integer number (41756890611064).

Almost surely, 2^{83513781222127} is an apocalyptic number.

83513781222127 is a deficient number, since it is larger than the sum of its proper divisors (1).

83513781222127 is an equidigital number, since it uses as much as digits as its factorization.

83513781222127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 52.

The spelling of 83513781222127 in words is "eighty-three trillion, five hundred thirteen billion, seven hundred eighty-one million, two hundred twenty-two thousand, one hundred twenty-seven".