11106421533 has 6 divisors (see below), whose sum is σ = 16042608894. Its totient is φ = 7404281016.

The previous prime is 11106421523. The next prime is 11106421561. The reversal of 11106421533 is 33512460111.

It is a happy number.

11106421533 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 642 + 15 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11106419769 + 1764 = 105387^2 + 42^2 .

It is not a de Polignac number, because 11106421533 - 2⁹ = 11106421021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11106421497 and 11106421506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11106421523) 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, 617023410 + ... + 617023427.

It is an arithmetic number, because the mean of its divisors is an integer number (2673768149).

Almost surely, 2^11106421533 is an apocalyptic number.

It is an amenable number.

11106421533 is a deficient number, since it is larger than the sum of its proper divisors (4936187361).

11106421533 is a wasteful number, since it uses less digits than its factorization.

11106421533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234046843 (or 1234046840 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 11106421533 its reverse (33512460111), we get a palindrome (44618881644).

The spelling of 11106421533 in words is "eleven billion, one hundred six million, four hundred twenty-one thousand, five hundred thirty-three".