2120123033441 has 6 divisors (see below), whose sum is σ = 2466265569570. Its totient is φ = 1817248314336.

The previous prime is 2120123033423. The next prime is 2120123033467. The reversal of 2120123033441 is 1443303210212.

It can be written as a sum of positive squares in only one way, i.e., 1800789544225 + 319333489216 = 1341935^2 + 565096^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2120123033441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120123033441.

It is not an unprimeable number, because it can be changed into a prime (2120123033141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21633908456 + ... + 21633908553.

It is an arithmetic number, because the mean of its divisors is an integer number (411044261595).

Almost surely, 2^{2120123033441} is an apocalyptic number.

It is an amenable number.

2120123033441 is a deficient number, since it is larger than the sum of its proper divisors (346142536129).

2120123033441 is an equidigital number, since it uses as much as digits as its factorization.

2120123033441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43267817023 (or 43267817016 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 2120123033441 its reverse (1443303210212), we get a palindrome (3563426243653).

The spelling of 2120123033441 in words is "two trillion, one hundred twenty billion, one hundred twenty-three million, thirty-three thousand, four hundred forty-one".