20413321443512 has 16 divisors (see below), whose sum is σ = 38313600302400. Its totient is φ = 10196361362880.

The previous prime is 20413321443481. The next prime is 20413321443533. The reversal of 20413321443512 is 21534412331402.

It is a super-2 number, since 2×20413321443512² (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, 1287411437 + ... + 1287427292.

It is an arithmetic number, because the mean of its divisors is an integer number (2394600018900).

Almost surely, 2^{20413321443512} is an apocalyptic number.

It is an amenable number.

20413321443512 is a deficient number, since it is larger than the sum of its proper divisors (17900278858888).

20413321443512 is a wasteful number, since it uses less digits than its factorization.

20413321443512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574839726 (or 2574839722 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 20413321443512 its reverse (21534412331402), we get a palindrome (41947733774914).

The spelling of 20413321443512 in words is "twenty trillion, four hundred thirteen billion, three hundred twenty-one million, four hundred forty-three thousand, five hundred twelve".