11101310311220 has 24 divisors (see below), whose sum is σ = 23316045177600. Its totient is φ = 4439896786592.

The previous prime is 11101310311211. The next prime is 11101310311241. The reversal of 11101310311220 is 2211301310111.

It is a congruent number.

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, 39063500 + ... + 39346659.

It is an arithmetic number, because the mean of its divisors is an integer number (971501882400).

Almost surely, 2^{11101310311220} is an apocalyptic number.

11101310311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11101310311220 is an abundant number, since it is smaller than the sum of its proper divisors (12214734866380).

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

11101310311220 is a wasteful number, since it uses less digits than its factorization.

11101310311220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78417247 (or 78417245 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 11101310311220 its reverse (2211301310111), we get a palindrome (13312611621331).

The spelling of 11101310311220 in words is "eleven trillion, one hundred one billion, three hundred ten million, three hundred eleven thousand, two hundred twenty".