11231201103012 has 144 divisors (see below), whose sum is σ = 31635615578112. Its totient is φ = 3330373717440.

The previous prime is 11231201102993. The next prime is 11231201103029. The reversal of 11231201103012 is 21030110213211.

11231201103012 is a `hidden beast` number, since 1 + 1 + 231 + 20 + 110 + 301 + 2 = 666.

It is a super-2 number, since 2×11231201103012² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107581023 + ... + 107685369.

It is an arithmetic number, because the mean of its divisors is an integer number (219691774848).

Almost surely, 2^{11231201103012} is an apocalyptic number.

11231201103012 is a gapful number since it is divisible by the number (12) 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 11231201103012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15817807789056).

11231201103012 is an abundant number, since it is smaller than the sum of its proper divisors (20404414475100).

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

11231201103012 is a wasteful number, since it uses less digits than its factorization.

11231201103012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110198 (or 110193 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11231201103012 its reverse (21030110213211), we get a palindrome (32261311316223).

The spelling of 11231201103012 in words is "eleven trillion, two hundred thirty-one billion, two hundred one million, one hundred three thousand, twelve".