20112131400203 has 8 divisors (see below), whose sum is σ = 20986646551200. Its totient is φ = 19237622470528.

The previous prime is 20112131400161. The next prime is 20112131400253. The reversal of 20112131400203 is 30200413121102.

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

It is a cyclic number.

It is not a de Polignac number, because 20112131400203 - 2⁶ = 20112131400139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112131400253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5788643 + ... + 8586771.

It is an arithmetic number, because the mean of its divisors is an integer number (2623330818900).

Almost surely, 2^{20112131400203} is an apocalyptic number.

20112131400203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20112131400203 is a deficient number, since it is larger than the sum of its proper divisors (874515150997).

20112131400203 is a wasteful number, since it uses less digits than its factorization.

20112131400203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110661.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20112131400203 its reverse (30200413121102), we get a palindrome (50312544521305).

The spelling of 20112131400203 in words is "twenty trillion, one hundred twelve billion, one hundred thirty-one million, four hundred thousand, two hundred three".