11123302312 has 8 divisors (see below), whose sum is σ = 20856191850. Its totient is φ = 5561651152.

The previous prime is 11123302301. The next prime is 11123302319. The reversal of 11123302312 is 21320332111.

It can be written as a sum of positive squares in only one way, i.e., 9284093316 + 1839208996 = 96354^2 + 42886^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 11123302312.

It is not an unprimeable number, because it can be changed into a prime (11123302319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695206387 + ... + 695206402.

Almost surely, 2^11123302312 is an apocalyptic number.

It is an amenable number.

11123302312 is a deficient number, since it is larger than the sum of its proper divisors (9732889538).

11123302312 is a wasteful number, since it uses less digits than its factorization.

11123302312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390412795 (or 1390412791 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11123302312 its reverse (21320332111), we get a palindrome (32443634423).

The spelling of 11123302312 in words is "eleven billion, one hundred twenty-three million, three hundred two thousand, three hundred twelve".