2120344253 has 4 divisors (see below), whose sum is σ = 2120483808. Its totient is φ = 2120204700.

The previous prime is 2120344241. The next prime is 2120344267. The reversal of 2120344253 is 3524430212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2120344253 - 2⁸ = 2120343997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120344223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43751 + ... + 78452.

It is an arithmetic number, because the mean of its divisors is an integer number (530120952).

Almost surely, 2^2120344253 is an apocalyptic number.

It is an amenable number.

2120344253 is a deficient number, since it is larger than the sum of its proper divisors (139555).

2120344253 is a wasteful number, since it uses less digits than its factorization.

2120344253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139554.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 2120344253 is about 46047.1959298283. The cubic root of 2120344253 is about 1284.7011882733.

Adding to 2120344253 its reverse (3524430212), we get a palindrome (5644774465).

It can be divided in two parts, 21203 and 44253, that added together give a palindrome (65456).

The spelling of 2120344253 in words is "two billion, one hundred twenty million, three hundred forty-four thousand, two hundred fifty-three".