2120303145 has 16 divisors (see below), whose sum is σ = 3403400832. Its totient is φ = 1127189760.

The previous prime is 2120303131. The next prime is 2120303147. The reversal of 2120303145 is 5413030212.

It is not a de Polignac number, because 2120303145 - 2⁵ = 2120303113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120303147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222592 + ... + 231921.

It is an arithmetic number, because the mean of its divisors is an integer number (212712552).

Almost surely, 2^2120303145 is an apocalyptic number.

It is an amenable number.

2120303145 is a deficient number, since it is larger than the sum of its proper divisors (1283097687).

2120303145 is a wasteful number, since it uses less digits than its factorization.

2120303145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454832.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2120303145 is about 46046.7495595509. The cubic root of 2120303145 is about 1284.6928858734.

Adding to 2120303145 its reverse (5413030212), we get a palindrome (7533333357).

The spelling of 2120303145 in words is "two billion, one hundred twenty million, three hundred three thousand, one hundred forty-five".