20112312001203 has 20 divisors (see below), whose sum is σ = 30210308656528. Its totient is φ = 13334129493840.

The previous prime is 20112312001099. The next prime is 20112312001219. The reversal of 20112312001203 is 30210021321102.

20112312001203 is a `hidden beast` number, since 20 + 11 + 231 + 200 + 1 + 203 = 666.

It is not a de Polignac number, because 20112312001203 - 2¹⁸ = 20112311739059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112312001253) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 685897351 + ... + 685926672.

Almost surely, 2^{20112312001203} is an apocalyptic number.

20112312001203 is a deficient number, since it is larger than the sum of its proper divisors (10097996655325).

20112312001203 is a wasteful number, since it uses less digits than its factorization.

20112312001203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371824216 (or 1371824207 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20112312001203 its reverse (30210021321102), we get a palindrome (50322333322305).

The spelling of 20112312001203 in words is "twenty trillion, one hundred twelve billion, three hundred twelve million, one thousand, two hundred three".