2123020313 has 8 divisors (see below), whose sum is σ = 2291716800. Its totient is φ = 1960689808.

The previous prime is 2123020301. The next prime is 2123020321. The reversal of 2123020313 is 3130203212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123020313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123020291 and 2123020300.

It is not an unprimeable number, because it can be changed into a prime (2123020343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1590803 + ... + 1592136.

It is an arithmetic number, because the mean of its divisors is an integer number (286464600).

Almost surely, 2^2123020313 is an apocalyptic number.

2123020313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2123020313 is a deficient number, since it is larger than the sum of its proper divisors (168696487).

2123020313 is a wasteful number, since it uses less digits than its factorization.

2123020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182991.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2123020313 is about 46076.2445626811. The cubic root of 2123020313 is about 1285.2414295013.

Adding to 2123020313 its reverse (3130203212), we get a palindrome (5253223525).

The spelling of 2123020313 in words is "two billion, one hundred twenty-three million, twenty thousand, three hundred thirteen".