203120220233 has 128 divisors (see below), whose sum is σ = 273829248000. Its totient is φ = 149564620800.

The previous prime is 203120220221. The next prime is 203120220257. The reversal of 203120220233 is 332022021302.

It is not a de Polignac number, because 203120220233 - 2⁴ = 203120220217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203120225233) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 440607623 + ... + 440608083.

It is an arithmetic number, because the mean of its divisors is an integer number (2139291000).

Almost surely, 2^203120220233 is an apocalyptic number.

It is an amenable number.

203120220233 is a deficient number, since it is larger than the sum of its proper divisors (70709027767).

203120220233 is a wasteful number, since it uses less digits than its factorization.

203120220233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 642 counting only the distinct ones).

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

Adding to 203120220233 its reverse (332022021302), we get a palindrome (535142241535).

The spelling of 203120220233 in words is "two hundred three billion, one hundred twenty million, two hundred twenty thousand, two hundred thirty-three".