12011111130 has 64 divisors (see below), whose sum is σ = 29693454336. Its totient is φ = 3107520000.

The previous prime is 12011111113. The next prime is 12011111149. The reversal of 12011111130 is 3111111021.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 195655 + ... + 249605.

It is an arithmetic number, because the mean of its divisors is an integer number (463960224).

Almost surely, 2^12011111130 is an apocalyptic number.

12011111130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011111130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14846727168).

12011111130 is an abundant number, since it is smaller than the sum of its proper divisors (17682343206).

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

12011111130 is a wasteful number, since it uses less digits than its factorization.

12011111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54183.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 12011111130 its reverse (3111111021), we get a palindrome (15122222151).

The spelling of 12011111130 in words is "twelve billion, eleven million, one hundred eleven thousand, one hundred thirty".