11111123130220 has 48 divisors (see below), whose sum is σ = 23757765228288. Its totient is φ = 4364036487360.

The previous prime is 11111123130179. The next prime is 11111123130251. The reversal of 11111123130220 is 2203132111111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12914262 + ... + 13747741.

It is an arithmetic number, because the mean of its divisors is an integer number (494953442256).

Almost surely, 2^{11111123130220} is an apocalyptic number.

11111123130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111123130220 is an abundant number, since it is smaller than the sum of its proper divisors (12646642098068).

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

11111123130220 is a wasteful number, since it uses less digits than its factorization.

11111123130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26662390 (or 26662388 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11111123130220 its reverse (2203132111111), we get a palindrome (13314255241331).

The spelling of 11111123130220 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-three million, one hundred thirty thousand, two hundred twenty".