2309120553 has 4 divisors (see below), whose sum is σ = 3078827408. Its totient is φ = 1539413700.

The previous prime is 2309120551. The next prime is 2309120663. The reversal of 2309120553 is 3550219032.

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 not a de Polignac number, because 2309120553 - 2¹ = 2309120551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2309120553.

It is not an unprimeable number, because it can be changed into a prime (2309120551) 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, 384853423 + ... + 384853428.

It is an arithmetic number, because the mean of its divisors is an integer number (769706852).

Almost surely, 2^2309120553 is an apocalyptic number.

It is an amenable number.

2309120553 is a deficient number, since it is larger than the sum of its proper divisors (769706855).

2309120553 is an equidigital number, since it uses as much as digits as its factorization.

2309120553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769706854.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 2309120553 is about 48053.3094906064. The cubic root of 2309120553 is about 1321.7486300759.

Adding to 2309120553 its reverse (3550219032), we get a palindrome (5859339585).

The spelling of 2309120553 in words is "two billion, three hundred nine million, one hundred twenty thousand, five hundred fifty-three".