11233231020 has 216 divisors, whose sum is σ = 37594629072. Its totient is φ = 2712948480.

The previous prime is 11233230989. The next prime is 11233231057. The reversal of 11233231020 is 2013233211.

11233231020 is a `hidden beast` number, since 1 + 1 + 2 + 332 + 310 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11233230984 and 11233231002.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6903447 + ... + 6905073.

Almost surely, 2^11233231020 is an apocalyptic number.

11233231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11233231020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18797314536).

11233231020 is an abundant number, since it is smaller than the sum of its proper divisors (26361398052).

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

11233231020 is a wasteful number, since it uses less digits than its factorization.

11233231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1965 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11233231020 its reverse (2013233211), we get a palindrome (13246464231).

The spelling of 11233231020 in words is "eleven billion, two hundred thirty-three million, two hundred thirty-one thousand, twenty".