123132220009 has 24 divisors (see below), whose sum is σ = 134762826240. Its totient is φ = 112346062752.

The previous prime is 123132219997. The next prime is 123132220037. The reversal of 123132220009 is 900022231321.

It is not a de Polignac number, because 123132220009 - 2¹⁹ = 123131695721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123132220049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1224952 + ... + 1321654.

It is an arithmetic number, because the mean of its divisors is an integer number (5615117760).

Almost surely, 2^123132220009 is an apocalyptic number.

It is an amenable number.

123132220009 is a deficient number, since it is larger than the sum of its proper divisors (11630606231).

123132220009 is an equidigital number, since it uses as much as digits as its factorization.

123132220009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96861 (or 96838 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

It can be divided in two parts, 12313 and 2220009, that added together give a palindrome (2232322).

The spelling of 123132220009 in words is "one hundred twenty-three billion, one hundred thirty-two million, two hundred twenty thousand, nine".