117821123266 has 32 divisors (see below), whose sum is σ = 227938769280. Its totient is φ = 44321424000.

The previous prime is 117821123257. The next prime is 117821123267. The reversal of 117821123266 is 662321128711.

It is not an unprimeable number, because it can be changed into a prime (117821123267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13186435 + ... + 13195366.

It is an arithmetic number, because the mean of its divisors is an integer number (7123086540).

Almost surely, 2^117821123266 is an apocalyptic number.

117821123266 is a deficient number, since it is larger than the sum of its proper divisors (110117646014).

117821123266 is a wasteful number, since it uses less digits than its factorization.

117821123266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26381850.

The product of its digits is 48384, while the sum is 40.

Subtracting 117821123266 from its reverse (662321128711), we obtain a palindrome (544500005445).

The spelling of 117821123266 in words is "one hundred seventeen billion, eight hundred twenty-one million, one hundred twenty-three thousand, two hundred sixty-six".