2303120736 has 144 divisors (see below), whose sum is σ = 7814303280. Its totient is φ = 658022400.

The previous prime is 2303120723. The next prime is 2303120737. The reversal of 2303120736 is 6370213032.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303120737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15136 + ... + 69536.

It is an arithmetic number, because the mean of its divisors is an integer number (54265995).

Almost surely, 2^2303120736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2303120736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3907151640).

2303120736 is an abundant number, since it is smaller than the sum of its proper divisors (5511182544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2303120736 is a wasteful number, since it uses less digits than its factorization.

2303120736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54434 (or 54413 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 2303120736 is about 47990.8401260074. The cubic root of 2303120736 is about 1320.6028651158.

Adding to 2303120736 its reverse (6370213032), we get a palindrome (8673333768).

The spelling of 2303120736 in words is "two billion, three hundred three million, one hundred twenty thousand, seven hundred thirty-six".