203313221220123 has 32 divisors (see below), whose sum is σ = 344305847040000. Its totient is φ = 116154743732928.

The previous prime is 203313221220113. The next prime is 203313221220127. The reversal of 203313221220123 is 321022122313302.

203313221220123 is a `hidden beast` number, since 2 + 0 + 3 + 313 + 2 + 2 + 1 + 220 + 123 = 666.

203313221220123 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203313221220123 - 2⁶ = 203313221220059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (203313221220127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111313123 + ... + 113124876.

It is an arithmetic number, because the mean of its divisors is an integer number (10759557720000).

Almost surely, 2^{203313221220123} is an apocalyptic number.

203313221220123 is a deficient number, since it is larger than the sum of its proper divisors (140992625819877).

203313221220123 is a wasteful number, since it uses less digits than its factorization.

203313221220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224442808 (or 224442802 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 203313221220123 its reverse (321022122313302), we get a palindrome (524335343533425).

The spelling of 203313221220123 in words is "two hundred three trillion, three hundred thirteen billion, two hundred twenty-one million, two hundred twenty thousand, one hundred twenty-three".