11103301311021 has 6 divisors (see below), whose sum is σ = 16038101893710. Its totient is φ = 7402200874008.

The previous prime is 11103301310947. The next prime is 11103301311043. The reversal of 11103301311021 is 12011310330111.

11103301311021 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 330 + 1 + 311 + 0 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8583903828900 + 2519397482121 = 2929830^2 + 1587261^2 .

It is not a de Polignac number, because 11103301311021 - 2⁹ = 11103301310509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11103301310985 and 11103301311003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103301311121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616850072826 + ... + 616850072843.

It is an arithmetic number, because the mean of its divisors is an integer number (2673016982285).

Almost surely, 2^{11103301311021} is an apocalyptic number.

It is an amenable number.

11103301311021 is a deficient number, since it is larger than the sum of its proper divisors (4934800582689).

11103301311021 is a wasteful number, since it uses less digits than its factorization.

11103301311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233700145675 (or 1233700145672 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 11103301311021 its reverse (12011310330111), we get a palindrome (23114611641132).

The spelling of 11103301311021 in words is "eleven trillion, one hundred three billion, three hundred one million, three hundred eleven thousand, twenty-one".