12155011324 has 12 divisors (see below), whose sum is σ = 21278678400. Its totient is φ = 6075388928.

The previous prime is 12155011301. The next prime is 12155011399. The reversal of 12155011324 is 42311055121.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 516229 + ... + 539260.

It is an arithmetic number, because the mean of its divisors is an integer number (1773223200).

Almost surely, 2^12155011324 is an apocalyptic number.

It is an amenable number.

12155011324 is a deficient number, since it is larger than the sum of its proper divisors (9123667076).

12155011324 is a wasteful number, since it uses less digits than its factorization.

12155011324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058372 (or 1058370 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 12155011324 its reverse (42311055121), we get a palindrome (54466066445).

The spelling of 12155011324 in words is "twelve billion, one hundred fifty-five million, eleven thousand, three hundred twenty-four".