11031031313220 has 24 divisors (see below), whose sum is σ = 30886887677184. Its totient is φ = 2941608350176.

The previous prime is 11031031313209. The next prime is 11031031313257. The reversal of 11031031313220 is 2231313013011.

It is a happy 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, 91925260884 + ... + 91925261003.

It is an arithmetic number, because the mean of its divisors is an integer number (1286953653216).

Almost surely, 2^{11031031313220} is an apocalyptic number.

11031031313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11031031313220 is an abundant number, since it is smaller than the sum of its proper divisors (19855856363964).

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

11031031313220 is a wasteful number, since it uses less digits than its factorization.

11031031313220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183850521899 (or 183850521897 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 11031031313220 its reverse (2231313013011), we get a palindrome (13262344326231).

The spelling of 11031031313220 in words is "eleven trillion, thirty-one billion, thirty-one million, three hundred thirteen thousand, two hundred twenty".