12031112542134 has 64 divisors (see below), whose sum is σ = 30205604597760. Its totient is φ = 3114952964640.

The previous prime is 12031112542067. The next prime is 12031112542139. The reversal of 12031112542134 is 43124521113021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031112542139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327733432 + ... + 327770139.

It is an arithmetic number, because the mean of its divisors is an integer number (471962571840).

Almost surely, 2^{12031112542134} is an apocalyptic number.

12031112542134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12031112542134 is an abundant number, since it is smaller than the sum of its proper divisors (18174492055626).

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

12031112542134 is a wasteful number, since it uses less digits than its factorization.

12031112542134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655503625.

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 12031112542134 its reverse (43124521113021), we get a palindrome (55155633655155).

The spelling of 12031112542134 in words is "twelve trillion, thirty-one billion, one hundred twelve million, five hundred forty-two thousand, one hundred thirty-four".