2123113320 has 48 divisors (see below), whose sum is σ = 6900119460. Its totient is φ = 566163456.

The previous prime is 2123113319. The next prime is 2123113351. The reversal of 2123113320 is 233113212.

2123113320 is a `hidden beast` number, since 21 + 2 + 311 + 332 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1992193956 + 130919364 = 44634^2 + 11442^2 .

It is a super-2 number, since 2×2123113320² = 9015220339122844800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2123113293 and 2123113302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2948409 + ... + 2949128.

Almost surely, 2^2123113320 is an apocalyptic number.

2123113320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123113320 is an abundant number, since it is smaller than the sum of its proper divisors (4777006140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123113320 is a wasteful number, since it uses less digits than its factorization.

2123113320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5897554 (or 5897547 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2123113320 is about 46077.2538244197. The cubic root of 2123113320 is about 1285.2601975277.

Adding to 2123113320 its reverse (233113212), we get a palindrome (2356226532).

The spelling of 2123113320 in words is "two billion, one hundred twenty-three million, one hundred thirteen thousand, three hundred twenty".