13011023103228 has 96 divisors (see below), whose sum is σ = 34565968926720. Its totient is φ = 4229886430080.

The previous prime is 13011023103167. The next prime is 13011023103229. The reversal of 13011023103228 is 82230132011031.

13011023103228 is a `hidden beast` number, since 1 + 301 + 1 + 0 + 2 + 31 + 0 + 322 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011023103229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13559575 + ... + 14487377.

It is an arithmetic number, because the mean of its divisors is an integer number (360062176320).

Almost surely, 2^{13011023103228} is an apocalyptic number.

13011023103228 is a gapful number since it is divisible by the number (18) 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 13011023103228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17282984463360).

13011023103228 is an abundant number, since it is smaller than the sum of its proper divisors (21554945823492).

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

13011023103228 is a wasteful number, since it uses less digits than its factorization.

13011023103228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931024 (or 931016 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 13011023103228 its reverse (82230132011031), we get a palindrome (95241155114259).

The spelling of 13011023103228 in words is "thirteen trillion, eleven billion, twenty-three million, one hundred three thousand, two hundred twenty-eight".