2120230312 has 8 divisors (see below), whose sum is σ = 3975431850. Its totient is φ = 1060115152.

The previous prime is 2120230309. The next prime is 2120230319. The reversal of 2120230312 is 2130320212.

It can be written as a sum of positive squares in only one way, i.e., 1187905156 + 932325156 = 34466^2 + 30534^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2120230319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132514387 + ... + 132514402.

Almost surely, 2^2120230312 is an apocalyptic number.

It is an amenable number.

2120230312 is a deficient number, since it is larger than the sum of its proper divisors (1855201538).

2120230312 is a wasteful number, since it uses less digits than its factorization.

2120230312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265028795 (or 265028791 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2120230312 is about 46045.9586934619. The cubic root of 2120230312 is about 1284.6781758529.

Adding to 2120230312 its reverse (2130320212), we get a palindrome (4250550524).

The spelling of 2120230312 in words is "two billion, one hundred twenty million, two hundred thirty thousand, three hundred twelve".