202123313 has 8 divisors (see below), whose sum is σ = 231222720. Its totient is φ = 173080080.

The previous prime is 202123309. The next prime is 202123357. The reversal of 202123313 is 313321202.

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 202123313 - 2² = 202123309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202123291 and 202123300.

It is not an unprimeable number, because it can be changed into a prime (202123373) 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, 6023 + ... + 20988.

It is an arithmetic number, because the mean of its divisors is an integer number (28902840).

Almost surely, 2^202123313 is an apocalyptic number.

It is an amenable number.

202123313 is a deficient number, since it is larger than the sum of its proper divisors (29099407).

202123313 is a wasteful number, since it uses less digits than its factorization.

202123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28087.

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

The square root of 202123313 is about 14217.0078778905. The cubic root of 202123313 is about 586.8658017100.

Adding to 202123313 its reverse (313321202), we get a palindrome (515444515).

The spelling of 202123313 in words is "two hundred two million, one hundred twenty-three thousand, three hundred thirteen".