2120231332123 has 2 divisors, whose sum is σ = 2120231332124. Its totient is φ = 2120231332122.

The previous prime is 2120231332111. The next prime is 2120231332183. The reversal of 2120231332123 is 3212331320212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120231332123 is a prime.

It is a super-2 number, since 2×2120231332123² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2120231332183) 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 as a sum of consecutive naturals, namely, 1060115666061 + 1060115666062.

It is an arithmetic number, because the mean of its divisors is an integer number (1060115666062).

Almost surely, 2^{2120231332123} is an apocalyptic number.

2120231332123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120231332123 is an equidigital number, since it uses as much as digits as its factorization.

2120231332123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2120231332123 its reverse (3212331320212), we get a palindrome (5332562652335).

The spelling of 2120231332123 in words is "two trillion, one hundred twenty billion, two hundred thirty-one million, three hundred thirty-two thousand, one hundred twenty-three".