20012313 has 4 divisors (see below), whose sum is σ = 26683088. Its totient is φ = 13341540.

The previous prime is 20012303. The next prime is 20012341. The reversal of 20012313 is 31321002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20012313 - 2¹⁰ = 20011289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20012303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3335383 + ... + 3335388.

It is an arithmetic number, because the mean of its divisors is an integer number (6670772).

Almost surely, 2^20012313 is an apocalyptic number.

It is an amenable number.

20012313 is a deficient number, since it is larger than the sum of its proper divisors (6670775).

20012313 is an equidigital number, since it uses as much as digits as its factorization.

20012313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670774.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 20012313 is about 4473.5123784338. The cubic root of 20012313 is about 271.4974546055.

Subtracting from 20012313 its sum of digits (12), we obtain a triangular number (20012301 = T₆₃₂₆).

Adding to 20012313 its reverse (31321002), we get a palindrome (51333315).

The spelling of 20012313 in words is "twenty million, twelve thousand, three hundred thirteen".