203022320123 has 16 divisors (see below), whose sum is σ = 246474353664. Its totient is φ = 163249188480.

The previous prime is 203022320099. The next prime is 203022320183. The reversal of 203022320123 is 321023220302.

It is not a de Polignac number, because 203022320123 - 2²⁴ = 203005542907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203022320095 and 203022320104.

It is not an unprimeable number, because it can be changed into a prime (203022320183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2742083 + ... + 2815148.

It is an arithmetic number, because the mean of its divisors is an integer number (15404647104).

Almost surely, 2^203022320123 is an apocalyptic number.

203022320123 is a deficient number, since it is larger than the sum of its proper divisors (43452033541).

203022320123 is a wasteful number, since it uses less digits than its factorization.

203022320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5557562.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 203022320123 its reverse (321023220302), we get a palindrome (524045540425).

The spelling of 203022320123 in words is "two hundred three billion, twenty-two million, three hundred twenty thousand, one hundred twenty-three".