11122223313131 has 4 divisors (see below), whose sum is σ = 12711112357872. Its totient is φ = 9533334268392.

The previous prime is 11122223313101. The next prime is 11122223313133. The reversal of 11122223313131 is 13131332222111.

11122223313131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11122223313131 - 2¹⁰ = 11122223312107 is a prime.

It is a super-2 number, since 2×11122223313131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11122223313131.

It is not an unprimeable number, because it can be changed into a prime (11122223313133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 794444522360 + ... + 794444522373.

It is an arithmetic number, because the mean of its divisors is an integer number (3177778089468).

Almost surely, 2^{11122223313131} is an apocalyptic number.

11122223313131 is a deficient number, since it is larger than the sum of its proper divisors (1588889044741).

11122223313131 is an equidigital number, since it uses as much as digits as its factorization.

11122223313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588889044740.

The product of its digits is 1296, while the sum is 26.

Adding to 11122223313131 its reverse (13131332222111), we get a palindrome (24253555535242).

The spelling of 11122223313131 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-three million, three hundred thirteen thousand, one hundred thirty-one".