12301011138 has 64 divisors (see below), whose sum is σ = 27034463232. Its totient is φ = 3708452160.

The previous prime is 12301011131. The next prime is 12301011167. The reversal of 12301011138 is 83111010321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12301011131) 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, 895881 + ... + 909507.

It is an arithmetic number, because the mean of its divisors is an integer number (422413488).

Almost surely, 2^12301011138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12301011138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13517231616).

12301011138 is an abundant number, since it is smaller than the sum of its proper divisors (14733452094).

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

12301011138 is a wasteful number, since it uses less digits than its factorization.

12301011138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13879.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12301011138 its reverse (83111010321), we get a palindrome (95412021459).

The spelling of 12301011138 in words is "twelve billion, three hundred one million, eleven thousand, one hundred thirty-eight".