2121300032 has 14 divisors (see below), whose sum is σ = 4209454878. Its totient is φ = 1060649984.

The previous prime is 2121300031. The next prime is 2121300061. The reversal of 2121300032 is 2300031212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2088855616 + 32444416 = 45704^2 + 5696^2 .

It is not an unprimeable number, because it can be changed into a prime (2121300031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16572593 + ... + 16572720.

Almost surely, 2^2121300032 is an apocalyptic number.

It is an amenable number.

2121300032 is a deficient number, since it is larger than the sum of its proper divisors (2088154846).

2121300032 is an equidigital number, since it uses as much as digits as its factorization.

2121300032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33145325 (or 33145315 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2121300032 is about 46057.5730146520. The cubic root of 2121300032 is about 1284.8941924619.

Adding to 2121300032 its reverse (2300031212), we get a palindrome (4421331244).

The spelling of 2121300032 in words is "two billion, one hundred twenty-one million, three hundred thousand, thirty-two".