12011034252 has 72 divisors (see below), whose sum is σ = 32619175680. Its totient is φ = 3429851040.

The previous prime is 12011034247. The next prime is 12011034389. The reversal of 12011034252 is 25243011021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1354449 + ... + 1363287.

Almost surely, 2^12011034252 is an apocalyptic number.

12011034252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12011034252 is an abundant number, since it is smaller than the sum of its proper divisors (20608141428).

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

12011034252 is a wasteful number, since it uses less digits than its factorization.

12011034252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11171 (or 11162 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 12011034252 its reverse (25243011021), we get a palindrome (37254045273).

The spelling of 12011034252 in words is "twelve billion, eleven million, thirty-four thousand, two hundred fifty-two".