11230231011220 has 96 divisors (see below), whose sum is σ = 26187947001216. Its totient is φ = 4018403520000.

The previous prime is 11230231011157. The next prime is 11230231011277. The reversal of 11230231011220 is 2211013203211.

It is a super-2 number, since 2×11230231011220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89155 + ... + 4740085.

It is an arithmetic number, because the mean of its divisors is an integer number (272791114596).

Almost surely, 2^{11230231011220} is an apocalyptic number.

11230231011220 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 11230231011220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13093973500608).

11230231011220 is an abundant number, since it is smaller than the sum of its proper divisors (14957715989996).

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

11230231011220 is a wasteful number, since it uses less digits than its factorization.

11230231011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651241 (or 4651239 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11230231011220 its reverse (2211013203211), we get a palindrome (13441244214431).

The spelling of 11230231011220 in words is "eleven trillion, two hundred thirty billion, two hundred thirty-one million, eleven thousand, two hundred twenty".