12121142334 has 16 divisors (see below), whose sum is σ = 27705468288. Its totient is φ = 3463183512.

The previous prime is 12121142323. The next prime is 12121142339. The reversal of 12121142334 is 43324112121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121142339) 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, 144299272 + ... + 144299355.

It is an arithmetic number, because the mean of its divisors is an integer number (1731591768).

Almost surely, 2^12121142334 is an apocalyptic number.

12121142334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12121142334 is an abundant number, since it is smaller than the sum of its proper divisors (15584325954).

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

12121142334 is a wasteful number, since it uses less digits than its factorization.

12121142334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288598639.

The product of its digits is 1152, while the sum is 24.

Adding to 12121142334 its reverse (43324112121), we get a palindrome (55445254455).

The spelling of 12121142334 in words is "twelve billion, one hundred twenty-one million, one hundred forty-two thousand, three hundred thirty-four".