11231320123112 has 8 divisors (see below), whose sum is σ = 21058725230850. Its totient is φ = 5615660061552.

The previous prime is 11231320123097. The next prime is 11231320123147. The reversal of 11231320123112 is 21132102313211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9004044454276 + 2227275668836 = 3000674^2 + 1492406^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×11231320123112² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701957507687 + ... + 701957507702.

Almost surely, 2^{11231320123112} is an apocalyptic number.

It is an amenable number.

11231320123112 is a deficient number, since it is larger than the sum of its proper divisors (9827405107738).

11231320123112 is a wasteful number, since it uses less digits than its factorization.

11231320123112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1403915015395 (or 1403915015391 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11231320123112 its reverse (21132102313211), we get a palindrome (32363422436323).

The spelling of 11231320123112 in words is "eleven trillion, two hundred thirty-one billion, three hundred twenty million, one hundred twenty-three thousand, one hundred twelve".