12152320434 has 32 divisors (see below), whose sum is σ = 28179296640. Its totient is φ = 3874652496.

The previous prime is 12152320421. The next prime is 12152320459. The reversal of 12152320434 is 43402325121.

12152320434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12152320434² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12152320398 and 12152320407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4890997 + ... + 4893480.

It is an arithmetic number, because the mean of its divisors is an integer number (880603020).

Almost surely, 2^12152320434 is an apocalyptic number.

12152320434 is an abundant number, since it is smaller than the sum of its proper divisors (16026976206).

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

12152320434 is a wasteful number, since it uses less digits than its factorization.

12152320434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9784511 (or 9784505 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 12152320434 its reverse (43402325121), we get a palindrome (55554645555).

The spelling of 12152320434 in words is "twelve billion, one hundred fifty-two million, three hundred twenty thousand, four hundred thirty-four".