2012131331121 has 32 divisors (see below), whose sum is σ = 2712365694720. Its totient is φ = 1326706262784.

The previous prime is 2012131331107. The next prime is 2012131331123. The reversal of 2012131331121 is 1211331312102.

It is not a de Polignac number, because 2012131331121 - 2²¹ = 2012129233969 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2012131331123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555375316 + ... + 555378938.

It is an arithmetic number, because the mean of its divisors is an integer number (84761427960).

Almost surely, 2^{2012131331121} is an apocalyptic number.

It is an amenable number.

2012131331121 is a deficient number, since it is larger than the sum of its proper divisors (700234363599).

2012131331121 is a wasteful number, since it uses less digits than its factorization.

2012131331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6345.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2012131331121 its reverse (1211331312102), we get a palindrome (3223462643223).

The spelling of 2012131331121 in words is "two trillion, twelve billion, one hundred thirty-one million, three hundred thirty-one thousand, one hundred twenty-one".