12111427340 has 12 divisors (see below), whose sum is σ = 25433997456. Its totient is φ = 4844570928.

The previous prime is 12111427337. The next prime is 12111427357. The reversal of 12111427340 is 4372411121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302785664 + ... + 302785703.

It is an arithmetic number, because the mean of its divisors is an integer number (2119499788).

Almost surely, 2^12111427340 is an apocalyptic number.

12111427340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111427340 is an abundant number, since it is smaller than the sum of its proper divisors (13322570116).

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

12111427340 is a wasteful number, since it uses less digits than its factorization.

12111427340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605571376 (or 605571374 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 12111427340 its reverse (4372411121), we get a palindrome (16483838461).

The spelling of 12111427340 in words is "twelve billion, one hundred eleven million, four hundred twenty-seven thousand, three hundred forty".