11231313312 has 48 divisors (see below), whose sum is σ = 29501267040. Its totient is φ = 3741349632.

The previous prime is 11231313283. The next prime is 11231313341. The reversal of 11231313312 is 21331313211.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11231313283) and next prime (11231313341).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×11231313312² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114538 + ... + 188630.

It is an arithmetic number, because the mean of its divisors is an integer number (614609730).

Almost surely, 2^11231313312 is an apocalyptic number.

11231313312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11231313312 is an abundant number, since it is smaller than the sum of its proper divisors (18269953728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11231313312 is a wasteful number, since it uses less digits than its factorization.

11231313312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75685 (or 75677 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

Adding to 11231313312 its reverse (21331313211), we get a palindrome (32562626523).

The spelling of 11231313312 in words is "eleven billion, two hundred thirty-one million, three hundred thirteen thousand, three hundred twelve".