2012311123133 has 8 divisors (see below), whose sum is σ = 2030960388600. Its totient is φ = 1993665270528.

The previous prime is 2012311123127. The next prime is 2012311123187. The reversal of 2012311123133 is 3313211132102.

It can be written as a sum of positive squares in 4 ways, for example, as 51339402724 + 1960971720409 = 226582^2 + 1400347^2 .

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 2012311123133 - 2²⁴ = 2012294345917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012311123099 and 2012311123108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012311123733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339185 + ... + 2034617.

It is an arithmetic number, because the mean of its divisors is an integer number (253870048575).

Almost surely, 2^{2012311123133} is an apocalyptic number.

It is an amenable number.

2012311123133 is a deficient number, since it is larger than the sum of its proper divisors (18649265467).

2012311123133 is a wasteful number, since it uses less digits than its factorization.

2012311123133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706431.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2012311123133 its reverse (3313211132102), we get a palindrome (5325522255235).

The spelling of 2012311123133 in words is "two trillion, twelve billion, three hundred eleven million, one hundred twenty-three thousand, one hundred thirty-three".