12146112742 has 16 divisors (see below), whose sum is σ = 18426705552. Its totient is φ = 6004055200.

The previous prime is 12146112631. The next prime is 12146112749. The reversal of 12146112742 is 24721164121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12146112749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93948 + ... + 181984.

It is an arithmetic number, because the mean of its divisors is an integer number (1151669097).

Almost surely, 2^12146112742 is an apocalyptic number.

12146112742 is a deficient number, since it is larger than the sum of its proper divisors (6280592810).

12146112742 is a wasteful number, since it uses less digits than its factorization.

12146112742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88823.

The product of its digits is 5376, while the sum is 31.

Adding to 12146112742 its reverse (24721164121), we get a palindrome (36867276863).

The spelling of 12146112742 in words is "twelve billion, one hundred forty-six million, one hundred twelve thousand, seven hundred forty-two".