20213433313 has 16 divisors (see below), whose sum is σ = 21471004800. Its totient is φ = 18963590400.

The previous prime is 20213433307. The next prime is 20213433323. The reversal of 20213433313 is 31333431202.

It is a cyclic number.

It is not a de Polignac number, because 20213433313 - 2⁹ = 20213432801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213433323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12865818 + ... + 12867388.

It is an arithmetic number, because the mean of its divisors is an integer number (1341937800).

Almost surely, 2^20213433313 is an apocalyptic number.

It is an amenable number.

20213433313 is a deficient number, since it is larger than the sum of its proper divisors (1257571487).

20213433313 is a wasteful number, since it uses less digits than its factorization.

20213433313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20213433313 its reverse (31333431202), we get a palindrome (51546864515).

The spelling of 20213433313 in words is "twenty billion, two hundred thirteen million, four hundred thirty-three thousand, three hundred thirteen".