12047655243 has 8 divisors (see below), whose sum is σ = 17299197328. Its totient is φ = 7413941664.

The previous prime is 12047655241. The next prime is 12047655283. The reversal of 12047655243 is 34255674021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12047655243 - 2¹ = 12047655241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 308914237 = 12047655243 / (1 + 2 + 0 + 4 + 7 + 6 + 5 + 5 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12047655241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154457080 + ... + 154457157.

It is an arithmetic number, because the mean of its divisors is an integer number (2162399666).

Almost surely, 2^12047655243 is an apocalyptic number.

12047655243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12047655243 is a deficient number, since it is larger than the sum of its proper divisors (5251542085).

12047655243 is a wasteful number, since it uses less digits than its factorization.

12047655243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308914253.

The product of its (nonzero) digits is 201600, while the sum is 39.

The spelling of 12047655243 in words is "twelve billion, forty-seven million, six hundred fifty-five thousand, two hundred forty-three".