11123122113231 has 8 divisors (see below), whose sum is σ = 15342237397680. Its totient is φ = 7159710785472.

The previous prime is 11123122113197. The next prime is 11123122113251. The reversal of 11123122113231 is 13231122132111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11123122113231 - 2⁹ = 11123122112719 is a prime.

It is a super-2 number, since 2×11123122113231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123122113251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63925989070 + ... + 63925989243.

It is an arithmetic number, because the mean of its divisors is an integer number (1917779674710).

Almost surely, 2^{11123122113231} is an apocalyptic number.

11123122113231 is a deficient number, since it is larger than the sum of its proper divisors (4219115284449).

11123122113231 is a wasteful number, since it uses less digits than its factorization.

11123122113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127851978345.

The product of its digits is 432, while the sum is 24.

Adding to 11123122113231 its reverse (13231122132111), we get a palindrome (24354244245342).

The spelling of 11123122113231 in words is "eleven trillion, one hundred twenty-three billion, one hundred twenty-two million, one hundred thirteen thousand, two hundred thirty-one".