11033321013 has 32 divisors (see below), whose sum is σ = 19203300480. Its totient is φ = 6172485120.

The previous prime is 11033321009. The next prime is 11033321029. The reversal of 11033321013 is 31012333011.

It is a happy number.

11033321013 is a `hidden beast` number, since 110 + 333 + 210 + 13 = 666.

It is not a de Polignac number, because 11033321013 - 2² = 11033321009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11033321093) 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, 1424956 + ... + 1432677.

It is an arithmetic number, because the mean of its divisors is an integer number (600103140).

Almost surely, 2^11033321013 is an apocalyptic number.

11033321013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11033321013 is a deficient number, since it is larger than the sum of its proper divisors (8169979467).

11033321013 is a wasteful number, since it uses less digits than its factorization.

11033321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857666 (or 2857660 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 11033321013 its reverse (31012333011), we get a palindrome (42045654024).

The spelling of 11033321013 in words is "eleven billion, thirty-three million, three hundred twenty-one thousand, thirteen".