20313133436446 has 8 divisors (see below), whose sum is σ = 30469754049840. Its totient is φ = 10156548753168.

The previous prime is 20313133436359. The next prime is 20313133436459. The reversal of 20313133436446 is 64463433131302.

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

It is a super-2 number, since 2×20313133436446² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7521631 + ... + 9859066.

It is an arithmetic number, because the mean of its divisors is an integer number (3808719256230).

Almost surely, 2^{20313133436446} is an apocalyptic number.

20313133436446 is a deficient number, since it is larger than the sum of its proper divisors (10156620613394).

20313133436446 is a wasteful number, since it uses less digits than its factorization.

20313133436446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17965058.

The product of its (nonzero) digits is 1119744, while the sum is 43.

Adding to 20313133436446 its reverse (64463433131302), we get a palindrome (84776566567748).

The spelling of 20313133436446 in words is "twenty trillion, three hundred thirteen billion, one hundred thirty-three million, four hundred thirty-six thousand, four hundred forty-six".