11213023011 has 16 divisors (see below), whose sum is σ = 15302305920. Its totient is φ = 7299633600.

The previous prime is 11213023007. The next prime is 11213023027. The reversal of 11213023011 is 11032031211.

It is a happy number.

It is not a de Polignac number, because 11213023011 - 2² = 11213023007 is a prime.

It is a super-2 number, since 2×11213023011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11213025011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642975 + ... + 660183.

It is an arithmetic number, because the mean of its divisors is an integer number (956394120).

Almost surely, 2^11213023011 is an apocalyptic number.

11213023011 is a deficient number, since it is larger than the sum of its proper divisors (4089282909).

11213023011 is a wasteful number, since it uses less digits than its factorization.

11213023011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22306.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11213023011 its reverse (11032031211), we get a palindrome (22245054222).

The spelling of 11213023011 in words is "eleven billion, two hundred thirteen million, twenty-three thousand, eleven".