20312000123203 has 16 divisors (see below), whose sum is σ = 21539136263040. Its totient is φ = 19088462007936.

The previous prime is 20312000123201. The next prime is 20312000123221. The reversal of 20312000123203 is 30232100021302.

It is a cyclic number.

It is not a de Polignac number, because 20312000123203 - 2¹ = 20312000123201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312000123201) 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 15 ways as a sum of consecutive naturals, for example, 86655600 + ... + 86889682.

It is an arithmetic number, because the mean of its divisors is an integer number (1346196016440).

Almost surely, 2^{20312000123203} is an apocalyptic number.

20312000123203 is a deficient number, since it is larger than the sum of its proper divisors (1227136139837).

20312000123203 is a wasteful number, since it uses less digits than its factorization.

20312000123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241746.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20312000123203 its reverse (30232100021302), we get a palindrome (50544100144505).

The spelling of 20312000123203 in words is "twenty trillion, three hundred twelve billion, one hundred twenty-three thousand, two hundred three".