91212103332323 has 4 divisors (see below), whose sum is σ = 91215385433568. Its totient is φ = 91208821231080.

The previous prime is 91212103332293. The next prime is 91212103332331. The reversal of 91212103332323 is 32323330121219.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91212103332323 - 2¹⁴ = 91212103315939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91212103332353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641008936 + ... + 1641064517.

It is an arithmetic number, because the mean of its divisors is an integer number (22803846358392).

Almost surely, 2^{91212103332323} is an apocalyptic number.

91212103332323 is a deficient number, since it is larger than the sum of its proper divisors (3282101245).

91212103332323 is a wasteful number, since it uses less digits than its factorization.

91212103332323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282101244.

The product of its (nonzero) digits is 34992, while the sum is 35.

The spelling of 91212103332323 in words is "ninety-one trillion, two hundred twelve billion, one hundred three million, three hundred thirty-two thousand, three hundred twenty-three".