12112312002 has 64 divisors (see below), whose sum is σ = 29186555904. Its totient is φ = 3277753920.

The previous prime is 12112311979. The next prime is 12112312013. The reversal of 12112312002 is 20021321121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37773 + ... + 160160.

It is an arithmetic number, because the mean of its divisors is an integer number (456039936).

Almost surely, 2^12112312002 is an apocalyptic number.

12112312002 is an abundant number, since it is smaller than the sum of its proper divisors (17074243902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112312002 is a wasteful number, since it uses less digits than its factorization.

12112312002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198023.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12112312002 its reverse (20021321121), we get a palindrome (32133633123).

The spelling of 12112312002 in words is "twelve billion, one hundred twelve million, three hundred twelve thousand, two".