2120300255449 has 4 divisors (see below), whose sum is σ = 2120324000436. Its totient is φ = 2120276510464.

The previous prime is 2120300255413. The next prime is 2120300255459. The reversal of 2120300255449 is 9445520030212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1090343198025 + 1029957057424 = 1044195^2 + 1014868^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120300255449 - 2⁹ = 2120300254937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120300255459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11738044 + ... + 11917309.

It is an arithmetic number, because the mean of its divisors is an integer number (530081000109).

Almost surely, 2^{2120300255449} is an apocalyptic number.

It is an amenable number.

2120300255449 is a deficient number, since it is larger than the sum of its proper divisors (23744987).

2120300255449 is an equidigital number, since it uses as much as digits as its factorization.

2120300255449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23744986.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 2120300255449 in words is "two trillion, one hundred twenty billion, three hundred million, two hundred fifty-five thousand, four hundred forty-nine".