91883280311 has 2 divisors, whose sum is σ = 91883280312. Its totient is φ = 91883280310.

The previous prime is 91883280301. The next prime is 91883280319. The reversal of 91883280311 is 11308238819.

It is a strong prime.

It is an emirp because it is prime and its reverse (11308238819) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91883280311 - 2²² = 91879086007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91883280319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45941640155 + 45941640156.

It is an arithmetic number, because the mean of its divisors is an integer number (45941640156).

Almost surely, 2^91883280311 is an apocalyptic number.

91883280311 is a deficient number, since it is larger than the sum of its proper divisors (1).

91883280311 is an equidigital number, since it uses as much as digits as its factorization.

91883280311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 91883280311 in words is "ninety-one billion, eight hundred eighty-three million, two hundred eighty thousand, three hundred eleven".