2123220203203 has 16 divisors (see below), whose sum is σ = 2361177742176. Its totient is φ = 1892790365440.

The previous prime is 2123220203201. The next prime is 2123220203257. The reversal of 2123220203203 is 3023020223212.

It is a cyclic number.

It is not a de Polignac number, because 2123220203203 - 2¹ = 2123220203201 is a prime.

It is a super-2 number, since 2×2123220203203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123220203201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163401 + ... + 2067157.

It is an arithmetic number, because the mean of its divisors is an integer number (147573608886).

Almost surely, 2^{2123220203203} is an apocalyptic number.

2123220203203 is a deficient number, since it is larger than the sum of its proper divisors (237957538973).

2123220203203 is a wasteful number, since it uses less digits than its factorization.

2123220203203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905734.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 2123220203203 its reverse (3023020223212), we get a palindrome (5146240426415).

The spelling of 2123220203203 in words is "two trillion, one hundred twenty-three billion, two hundred twenty million, two hundred three thousand, two hundred three".