20400413143203 has 24 divisors (see below), whose sum is σ = 29502575032320. Its totient is φ = 13583979022320.

The previous prime is 20400413143183. The next prime is 20400413143211. The reversal of 20400413143203 is 30234131400402.

20400413143203 is a `hidden beast` number, since 2 + 0 + 4 + 0 + 0 + 413 + 1 + 43 + 203 = 666.

It is not a de Polignac number, because 20400413143203 - 2³⁰ = 20399339401379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20400413143283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 338447958 + ... + 338508228.

It is an arithmetic number, because the mean of its divisors is an integer number (1229273959680).

Almost surely, 2^{20400413143203} is an apocalyptic number.

20400413143203 is a deficient number, since it is larger than the sum of its proper divisors (9102161889117).

20400413143203 is a wasteful number, since it uses less digits than its factorization.

20400413143203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104719 (or 104716 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20400413143203 its reverse (30234131400402), we get a palindrome (50634544543605).

The spelling of 20400413143203 in words is "twenty trillion, four hundred billion, four hundred thirteen million, one hundred forty-three thousand, two hundred three".