11302231212 has 24 divisors (see below), whose sum is σ = 29302081200. Its totient is φ = 3767410368.

The previous prime is 11302231201. The next prime is 11302231243. The reversal of 11302231212 is 21213220311.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 52325037 + ... + 52325252.

It is an arithmetic number, because the mean of its divisors is an integer number (1220920050).

Almost surely, 2^11302231212 is an apocalyptic number.

11302231212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11302231212 is an abundant number, since it is smaller than the sum of its proper divisors (17999849988).

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

11302231212 is a wasteful number, since it uses less digits than its factorization.

11302231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104650302 (or 104650294 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11302231212 its reverse (21213220311), we get a palindrome (32515451523).

The spelling of 11302231212 in words is "eleven billion, three hundred two million, two hundred thirty-one thousand, two hundred twelve".