11213323011 has 72 divisors (see below), whose sum is σ = 18080139168. Its totient is φ = 6691238400.

The previous prime is 11213322941. The next prime is 11213323013. The reversal of 11213323011 is 11032331211.

11213323011 is a `hidden beast` number, since 11 + 21 + 332 + 301 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-11213323011 is a prime.

It is a super-2 number, since 2×11213323011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11213323013) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 36055546 + ... + 36055856.

It is an arithmetic number, because the mean of its divisors is an integer number (251113044).

Almost surely, 2^11213323011 is an apocalyptic number.

11213323011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11213323011 is a deficient number, since it is larger than the sum of its proper divisors (6866816157).

11213323011 is a wasteful number, since it uses less digits than its factorization.

11213323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11213323011 its reverse (11032331211), we get a palindrome (22245654222).

The spelling of 11213323011 in words is "eleven billion, two hundred thirteen million, three hundred twenty-three thousand, eleven".