11023231121220 has 24 divisors (see below), whose sum is σ = 30865047139584. Its totient is φ = 2939528298976.

The previous prime is 11023231121131. The next prime is 11023231121233. The reversal of 11023231121220 is 2212113232011.

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, 91860259284 + ... + 91860259403.

It is an arithmetic number, because the mean of its divisors is an integer number (1286043630816).

Almost surely, 2^{11023231121220} is an apocalyptic number.

11023231121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11023231121220 is an abundant number, since it is smaller than the sum of its proper divisors (19841816018364).

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

11023231121220 is a wasteful number, since it uses less digits than its factorization.

11023231121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183720518699 (or 183720518697 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11023231121220 its reverse (2212113232011), we get a palindrome (13235344353231).

The spelling of 11023231121220 in words is "eleven trillion, twenty-three billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred twenty".