2120423215 has 8 divisors (see below), whose sum is σ = 2559745440. Its totient is φ = 1686180192.

The previous prime is 2120423197. The next prime is 2120423233. The reversal of 2120423215 is 5123240212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2120423197) and next prime (2120423233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120423215 - 2⁵ = 2120423183 is a prime.

It is a super-2 number, since 2×2120423215² = 8992389221421872450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268880 + ... + 1270549.

It is an arithmetic number, because the mean of its divisors is an integer number (319968180).

Almost surely, 2^2120423215 is an apocalyptic number.

2120423215 is a deficient number, since it is larger than the sum of its proper divisors (439322225).

2120423215 is a wasteful number, since it uses less digits than its factorization.

2120423215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539601.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2120423215 is about 46048.0533247606. The cubic root of 2120423215 is about 1284.7171355762.

Adding to 2120423215 its reverse (5123240212), we get a palindrome (7243663427).

The spelling of 2120423215 in words is "two billion, one hundred twenty million, four hundred twenty-three thousand, two hundred fifteen".