11111023020 has 24 divisors (see below), whose sum is σ = 31110864624. Its totient is φ = 2962939456.

The previous prime is 11111023009. The next prime is 11111023037. The reversal of 11111023020 is 2032011111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11111022987 and 11111023005.

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, 92591799 + ... + 92591918.

It is an arithmetic number, because the mean of its divisors is an integer number (1296286026).

Almost surely, 2^11111023020 is an apocalyptic number.

11111023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111023020 is an abundant number, since it is smaller than the sum of its proper divisors (19999841604).

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

11111023020 is a wasteful number, since it uses less digits than its factorization.

11111023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185183729 (or 185183727 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11111023020 its reverse (2032011111), we get a palindrome (13143034131).

The spelling of 11111023020 in words is "eleven billion, one hundred eleven million, twenty-three thousand, twenty".