11013223131 has 16 divisors (see below), whose sum is σ = 16318341120. Its totient is φ = 7341044040.

The previous prime is 11013223129. The next prime is 11013223187. The reversal of 11013223131 is 13132231011.

It is not a de Polignac number, because 11013223131 - 2¹ = 11013223129 is a prime.

It is a super-2 number, since 2×11013223131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11013223121) 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, 177846 + ... + 231636.

It is an arithmetic number, because the mean of its divisors is an integer number (1019896320).

Almost surely, 2^11013223131 is an apocalyptic number.

11013223131 is a deficient number, since it is larger than the sum of its proper divisors (5305117989).

11013223131 is an equidigital number, since it uses as much as digits as its factorization.

11013223131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61383 (or 61377 counting only the distinct ones).

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

Adding to 11013223131 its reverse (13132231011), we get a palindrome (24145454142).

The spelling of 11013223131 in words is "eleven billion, thirteen million, two hundred twenty-three thousand, one hundred thirty-one".