12121560790643 has 8 divisors (see below), whose sum is σ = 12137893102368. Its totient is φ = 12105230162944.

The previous prime is 12121560790637. The next prime is 12121560790681. The reversal of 12121560790643 is 34609706512121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12121560790643 - 2⁴ = 12121560790627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121560790613) 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, 14332346 + ... + 15154512.

It is an arithmetic number, because the mean of its divisors is an integer number (1517236637796).

Almost surely, 2^{12121560790643} is an apocalyptic number.

12121560790643 is a deficient number, since it is larger than the sum of its proper divisors (16332311725).

12121560790643 is an equidigital number, since it uses as much as digits as its factorization.

12121560790643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842013.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 12121560790643 in words is "twelve trillion, one hundred twenty-one billion, five hundred sixty million, seven hundred ninety thousand, six hundred forty-three".