12013003134 has 128 divisors (see below), whose sum is σ = 29506498560. Its totient is φ = 3592648800.

The previous prime is 12013003133. The next prime is 12013003139. The reversal of 12013003134 is 43130031021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013003133) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20464789 + ... + 20465375.

It is an arithmetic number, because the mean of its divisors is an integer number (230519520).

Almost surely, 2^12013003134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12013003134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14753249280).

12013003134 is an abundant number, since it is smaller than the sum of its proper divisors (17493495426).

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

12013003134 is a wasteful number, since it uses less digits than its factorization.

12013003134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12013003134 its reverse (43130031021), we get a palindrome (55143034155).

The spelling of 12013003134 in words is "twelve billion, thirteen million, three thousand, one hundred thirty-four".