2120552423505 has 96 divisors (see below), whose sum is σ = 3763011313152. Its totient is φ = 1104289804800.

The previous prime is 2120552423489. The next prime is 2120552423597. The reversal of 2120552423505 is 5053242550212.

2120552423505 is a `hidden beast` number, since 2 + 12 + 0 + 55 + 242 + 350 + 5 = 666.

It is not a de Polignac number, because 2120552423505 - 2⁴ = 2120552423489 is a prime.

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 2120552423505.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 636609690 + ... + 636613020.

It is an arithmetic number, because the mean of its divisors is an integer number (39198034512).

Almost surely, 2^{2120552423505} is an apocalyptic number.

It is an amenable number.

2120552423505 is a deficient number, since it is larger than the sum of its proper divisors (1642458889647).

2120552423505 is a wasteful number, since it uses less digits than its factorization.

2120552423505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599 (or 4596 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

Adding to 2120552423505 its reverse (5053242550212), we get a palindrome (7173794973717).

The spelling of 2120552423505 in words is "two trillion, one hundred twenty billion, five hundred fifty-two million, four hundred twenty-three thousand, five hundred five".