12112400042040 has 64 divisors (see below), whose sum is σ = 38474682492960. Its totient is φ = 3039974912000.

The previous prime is 12112400042033. The next prime is 12112400042089. The reversal of 12112400042040 is 4024000421121.

It is a junction number, because it is equal to n+sod(n) for n = 12112400041998 and 12112400042016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2968723461 + ... + 2968727540.

Almost surely, 2^{12112400042040} is an apocalyptic number.

12112400042040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112400042040 is an abundant number, since it is smaller than the sum of its proper divisors (26362282450920).

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

12112400042040 is a wasteful number, since it uses less digits than its factorization.

12112400042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937451032 (or 5937451028 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12112400042040 its reverse (4024000421121), we get a palindrome (16136400463161).

The spelling of 12112400042040 in words is "twelve trillion, one hundred twelve billion, four hundred million, forty-two thousand, forty".