12121211023313 has 24 divisors (see below), whose sum is σ = 14425497619200. Its totient is φ = 10150681910208.

The previous prime is 12121211023283. The next prime is 12121211023379. The reversal of 12121211023313 is 31332011212121.

It is a happy number.

It is not a de Polignac number, because 12121211023313 - 2³⁰ = 12120137281489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121211023213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3314573 + ... + 5935386.

It is an arithmetic number, because the mean of its divisors is an integer number (601062400800).

Almost surely, 2^{12121211023313} is an apocalyptic number.

It is an amenable number.

12121211023313 is a deficient number, since it is larger than the sum of its proper divisors (2304286595887).

12121211023313 is an equidigital number, since it uses as much as digits as its factorization.

12121211023313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9250589 (or 9250582 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12121211023313 its reverse (31332011212121), we get a palindrome (43453222235434).

The spelling of 12121211023313 in words is "twelve trillion, one hundred twenty-one billion, two hundred eleven million, twenty-three thousand, three hundred thirteen".