20400413143204 has 12 divisors (see below), whose sum is σ = 35700801358684. Its totient is φ = 10200184183584.

The previous prime is 20400413143183. The next prime is 20400413143211. The reversal of 20400413143204 is 40234131400402.

It can be written as a sum of positive squares in 2 ways, for example, as 4512217143204 + 15888196000000 = 2124198^2 + 3986000^2 .

It is a super-2 number, since 2×20400413143204² (a number of 27 digits) contains 22 as substring.

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, 3455739 + ... + 7262434.

Almost surely, 2^{20400413143204} is an apocalyptic number.

It is an amenable number.

20400413143204 is a deficient number, since it is larger than the sum of its proper divisors (15300388215480).

20400413143204 is a wasteful number, since it uses less digits than its factorization.

20400413143204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11194014 (or 11194012 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20400413143204 its reverse (40234131400402), we get a palindrome (60634544543606).

The spelling of 20400413143204 in words is "twenty trillion, four hundred billion, four hundred thirteen million, one hundred forty-three thousand, two hundred four".