11020311320 has 16 divisors (see below), whose sum is σ = 24795700560. Its totient is φ = 4408124512.

The previous prime is 11020311259. The next prime is 11020311331. The reversal of 11020311320 is 2311302011.

It is a junction number, because it is equal to n+sod(n) for n = 11020311295 and 11020311304.

It is a congruent number.

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, 137753852 + ... + 137753931.

It is an arithmetic number, because the mean of its divisors is an integer number (1549731285).

Almost surely, 2^11020311320 is an apocalyptic number.

11020311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020311320 is an abundant number, since it is smaller than the sum of its proper divisors (13775389240).

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

11020311320 is a wasteful number, since it uses less digits than its factorization.

11020311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275507794 (or 275507790 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11020311320 its reverse (2311302011), we get a palindrome (13331613331).

The spelling of 11020311320 in words is "eleven billion, twenty million, three hundred eleven thousand, three hundred twenty".