2120423216 has 20 divisors (see below), whose sum is σ = 4146014400. Its totient is φ = 1050484032.

The previous prime is 2120423197. The next prime is 2120423233. The reversal of 2120423216 is 6123240212.

It is a happy number.

It is a super-2 number, since 2×2120423216² = 8992389229903565312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120423191 and 2120423200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606176 + ... + 609663.

It is an arithmetic number, because the mean of its divisors is an integer number (207300720).

Almost surely, 2^2120423216 is an apocalyptic number.

It is an amenable number.

2120423216 is a deficient number, since it is larger than the sum of its proper divisors (2025591184).

2120423216 is a wasteful number, since it uses less digits than its factorization.

2120423216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215956 (or 1215950 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2120423216 is about 46048.0533356189. The cubic root of 2120423216 is about 1284.7171357781.

Adding to 2120423216 its reverse (6123240212), we get a palindrome (8243663428).

The spelling of 2120423216 in words is "two billion, one hundred twenty million, four hundred twenty-three thousand, two hundred sixteen".