11231302312 has 16 divisors (see below), whose sum is σ = 21295307700. Its totient is φ = 5552553600.

The previous prime is 11231302309. The next prime is 11231302319. The reversal of 11231302312 is 21320313211.

It can be written as a sum of positive squares in 2 ways, for example, as 10378311876 + 852990436 = 101874^2 + 29206^2 .

It is a super-2 number, since 2×11231302312² (a number of 21 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 11231302312.

It is not an unprimeable number, because it can be changed into a prime (11231302319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7886439 + ... + 7887862.

Almost surely, 2^11231302312 is an apocalyptic number.

It is an amenable number.

11231302312 is a deficient number, since it is larger than the sum of its proper divisors (10064005388).

11231302312 is a wasteful number, since it uses less digits than its factorization.

11231302312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15774396 (or 15774392 counting only the distinct ones).

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

Adding to 11231302312 its reverse (21320313211), we get a palindrome (32551615523).

The spelling of 11231302312 in words is "eleven billion, two hundred thirty-one million, three hundred two thousand, three hundred twelve".