1211340130112 has 28 divisors (see below), whose sum is σ = 2747146367520. Its totient is φ = 519145769856.

The previous prime is 1211340130097. The next prime is 1211340130153. The reversal of 1211340130112 is 2110310431121.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1351941662 + ... + 1351942557.

Almost surely, 2^{1211340130112} is an apocalyptic number.

It is an amenable number.

1211340130112 is an abundant number, since it is smaller than the sum of its proper divisors (1535806237408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211340130112 is an equidigital number, since it uses as much as digits as its factorization.

1211340130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703884238 (or 2703884228 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1211340130112 its reverse (2110310431121), we get a palindrome (3321650561233).

The spelling of 1211340130112 in words is "one trillion, two hundred eleven billion, three hundred forty million, one hundred thirty thousand, one hundred twelve".