2303145720 has 192 divisors, whose sum is σ = 7960680000. Its totient is φ = 575483904.

The previous prime is 2303145701. The next prime is 2303145721. The reversal of 2303145720 is 275413032.

2303145720 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303145721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1645581 + ... + 1646979.

It is an arithmetic number, because the mean of its divisors is an integer number (41461875).

Almost surely, 2^2303145720 is an apocalyptic number.

2303145720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2303145720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3980340000).

2303145720 is an abundant number, since it is smaller than the sum of its proper divisors (5657534280).

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

2303145720 is a wasteful number, since it uses less digits than its factorization.

2303145720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1702 (or 1695 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 2303145720 is about 47991.1004249746. The cubic root of 2303145720 is about 1320.6076403500.

Adding to 2303145720 its reverse (275413032), we get a palindrome (2578558752).

The spelling of 2303145720 in words is "two billion, three hundred three million, one hundred forty-five thousand, seven hundred twenty".