12011233320 has 96 divisors (see below), whose sum is σ = 39069225000. Its totient is φ = 3200311296.

The previous prime is 12011233277. The next prime is 12011233343. The reversal of 12011233320 is 2333211021.

It can be written as a sum of positive squares in 4 ways, for example, as 11582494884 + 428738436 = 107622^2 + 20706^2 .

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 = 12011233293 and 12011233302.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436284 + ... + 462996.

Almost surely, 2^12011233320 is an apocalyptic number.

12011233320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011233320 is an abundant number, since it is smaller than the sum of its proper divisors (27057991680).

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

12011233320 is a wasteful number, since it uses less digits than its factorization.

12011233320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27979 (or 27972 counting only the distinct ones).

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

Adding to 12011233320 its reverse (2333211021), we get a palindrome (14344444341).

The spelling of 12011233320 in words is "twelve billion, eleven million, two hundred thirty-three thousand, three hundred twenty".