11811206120 has 32 divisors (see below), whose sum is σ = 30371673600. Its totient is φ = 4049556288.

The previous prime is 11811206107. The next prime is 11811206137. The reversal of 11811206120 is 2160211811.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21091160 + ... + 21091719.

It is an arithmetic number, because the mean of its divisors is an integer number (949114800).

Almost surely, 2^11811206120 is an apocalyptic number.

11811206120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11811206120 is an abundant number, since it is smaller than the sum of its proper divisors (18560467480).

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

11811206120 is a wasteful number, since it uses less digits than its factorization.

11811206120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42182897 (or 42182893 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 23.

Adding to 11811206120 its reverse (2160211811), we get a palindrome (13971417931).

The spelling of 11811206120 in words is "eleven billion, eight hundred eleven million, two hundred six thousand, one hundred twenty".