12112431102 has 24 divisors (see below), whose sum is σ = 27148553640. Its totient is φ = 3898253520.

The previous prime is 12112431101. The next prime is 12112431173. The reversal of 12112431102 is 20113421121.

12112431102 is a `hidden beast` number, since 121 + 12 + 431 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112431101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11601424 + ... + 11602467.

It is an arithmetic number, because the mean of its divisors is an integer number (1131189735).

Almost surely, 2^12112431102 is an apocalyptic number.

12112431102 is an abundant number, since it is smaller than the sum of its proper divisors (15036122538).

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

12112431102 is a wasteful number, since it uses less digits than its factorization.

12112431102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23203928 (or 23203925 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12112431102 its reverse (20113421121), we get a palindrome (32225852223).

The spelling of 12112431102 in words is "twelve billion, one hundred twelve million, four hundred thirty-one thousand, one hundred two".