1123002311212 has 96 divisors (see below), whose sum is σ = 2169296640000. Its totient is φ = 506891142912.

The previous prime is 1123002311159. The next prime is 1123002311267. The reversal of 1123002311212 is 2121132003211.

It is a super-2 number, since 2×1123002311212² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123002311212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106957539 + ... + 106968037.

It is an arithmetic number, because the mean of its divisors is an integer number (22596840000).

Almost surely, 2^{1123002311212} is an apocalyptic number.

It is an amenable number.

1123002311212 is a deficient number, since it is larger than the sum of its proper divisors (1046294328788).

1123002311212 is a wasteful number, since it uses less digits than its factorization.

1123002311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11455 (or 11453 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1123002311212 its reverse (2121132003211), we get a palindrome (3244134314423).

The spelling of 1123002311212 in words is "one trillion, one hundred twenty-three billion, two million, three hundred eleven thousand, two hundred twelve".