1123232120312 has 16 divisors (see below), whose sum is σ = 2197628061840. Its totient is φ = 537197970496.

The previous prime is 1123232120299. The next prime is 1123232120347. The reversal of 1123232120312 is 2130212323211.

It is a super-2 number, since 2×1123232120312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3052261013 + ... + 3052261380.

It is an arithmetic number, because the mean of its divisors is an integer number (137351753865).

Almost surely, 2^{1123232120312} is an apocalyptic number.

It is an amenable number.

1123232120312 is a deficient number, since it is larger than the sum of its proper divisors (1074395941528).

1123232120312 is a wasteful number, since it uses less digits than its factorization.

1123232120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104522422 (or 6104522418 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1123232120312 its reverse (2130212323211), we get a palindrome (3253444443523).

The spelling of 1123232120312 in words is "one trillion, one hundred twenty-three billion, two hundred thirty-two million, one hundred twenty thousand, three hundred twelve".