2120231113133 has 12 divisors (see below), whose sum is σ = 2469440032380. Its totient is φ = 1815094516032.

The previous prime is 2120231113129. The next prime is 2120231113153. The reversal of 2120231113133 is 3313111320212.

It can be written as a sum of positive squares in 2 ways, for example, as 1635567305449 + 484663807684 = 1278893^2 + 696178^2 .

It is not a de Polignac number, because 2120231113133 - 2² = 2120231113129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120231113099 and 2120231113108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120231113153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26703266 + ... + 26782547.

It is an arithmetic number, because the mean of its divisors is an integer number (205786669365).

Almost surely, 2^{2120231113133} is an apocalyptic number.

It is an amenable number.

2120231113133 is a deficient number, since it is larger than the sum of its proper divisors (349208919247).

2120231113133 is an equidigital number, since it uses as much as digits as its factorization.

2120231113133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53486636 (or 53486629 counting only the distinct ones).

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

Adding to 2120231113133 its reverse (3313111320212), we get a palindrome (5433342433345).

The spelling of 2120231113133 in words is "two trillion, one hundred twenty billion, two hundred thirty-one million, one hundred thirteen thousand, one hundred thirty-three".