12100020823 has 8 divisors (see below), whose sum is σ = 13200834960. Its totient is φ = 10999342080.

The previous prime is 12100020791. The next prime is 12100020839. The reversal of 12100020823 is 32802000121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12100020823 - 2⁵ = 12100020791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12100020823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100020853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277911 + ... + 318487.

It is an arithmetic number, because the mean of its divisors is an integer number (1650104370).

Almost surely, 2^12100020823 is an apocalyptic number.

12100020823 is a deficient number, since it is larger than the sum of its proper divisors (1100814137).

12100020823 is a wasteful number, since it uses less digits than its factorization.

12100020823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67697.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12100020823 its reverse (32802000121), we get a palindrome (44902020944).

The spelling of 12100020823 in words is "twelve billion, one hundred million, twenty thousand, eight hundred twenty-three".