1212131201113 has 16 divisors (see below), whose sum is σ = 1413667489536. Its totient is φ = 1017750726720.

The previous prime is 1212131201101. The next prime is 1212131201119. The reversal of 1212131201113 is 3111021312121.

It is not a de Polignac number, because 1212131201113 - 2¹⁷ = 1212131070041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212131201119) by changing a digit.

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, 2354806 + ... + 2823007.

It is an arithmetic number, because the mean of its divisors is an integer number (88354218096).

Almost surely, 2^{1212131201113} is an apocalyptic number.

It is an amenable number.

1212131201113 is a deficient number, since it is larger than the sum of its proper divisors (201536288423).

1212131201113 is an equidigital number, since it uses as much as digits as its factorization.

1212131201113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178504.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1212131201113 its reverse (3111021312121), we get a palindrome (4323152513234).

The spelling of 1212131201113 in words is "one trillion, two hundred twelve billion, one hundred thirty-one million, two hundred one thousand, one hundred thirteen".