11123313020 has 24 divisors (see below), whose sum is σ = 23396842224. Its totient is φ = 4442109056.

The previous prime is 11123313007. The next prime is 11123313041. The reversal of 11123313020 is 2031332111.

It is a self number, because there is not a number n which added to its sum of digits gives 11123313020.

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, 438362 + ... + 463041.

It is an arithmetic number, because the mean of its divisors is an integer number (974868426).

Almost surely, 2^11123313020 is an apocalyptic number.

11123313020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11123313020 is an abundant number, since it is smaller than the sum of its proper divisors (12273529204).

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

11123313020 is a wasteful number, since it uses less digits than its factorization.

11123313020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902029 (or 902027 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11123313020 its reverse (2031332111), we get a palindrome (13154645131).

The spelling of 11123313020 in words is "eleven billion, one hundred twenty-three million, three hundred thirteen thousand, twenty".