12112506340040 has 32 divisors (see below), whose sum is σ = 27254358101880. Its totient is φ = 4844785853952.

The previous prime is 12112506340037. The next prime is 12112506340063. The reversal of 12112506340040 is 4004360521121.

It can be written as a sum of positive squares in 4 ways, for example, as 9191968894276 + 2920537445764 = 3031826^2 + 1708958^2 .

It is a super-2 number, since 2×12112506340040² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12112506339985 and 12112506340012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5864237 + ... + 7655996.

Almost surely, 2^{12112506340040} is an apocalyptic number.

12112506340040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112506340040 is an abundant number, since it is smaller than the sum of its proper divisors (15141851761840).

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

12112506340040 is a wasteful number, since it uses less digits than its factorization.

12112506340040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13542641 (or 13542637 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 12112506340040 its reverse (4004360521121), we get a palindrome (16116866861161).

The spelling of 12112506340040 in words is "twelve trillion, one hundred twelve billion, five hundred six million, three hundred forty thousand, forty".