2011253312123 has 32 divisors (see below), whose sum is σ = 2282799697920. Its totient is φ = 1755225472000.

The previous prime is 2011253312119. The next prime is 2011253312143. The reversal of 2011253312123 is 3212133521102.

It is not a de Polignac number, because 2011253312123 - 2² = 2011253312119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011253312092 and 2011253312101.

It is not an unprimeable number, because it can be changed into a prime (2011253312143) 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 31 ways as a sum of consecutive naturals, for example, 138118763 + ... + 138133323.

It is an arithmetic number, because the mean of its divisors is an integer number (71337490560).

Almost surely, 2^{2011253312123} is an apocalyptic number.

2011253312123 is a deficient number, since it is larger than the sum of its proper divisors (271546385797).

2011253312123 is a wasteful number, since it uses less digits than its factorization.

2011253312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17059.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 2011253312123 its reverse (3212133521102), we get a palindrome (5223386833225).

The spelling of 2011253312123 in words is "two trillion, eleven billion, two hundred fifty-three million, three hundred twelve thousand, one hundred twenty-three".