203122003231 has 64 divisors (see below), whose sum is σ = 255691054080. Its totient is φ = 157487016960.

The previous prime is 203122003213. The next prime is 203122003277. The reversal of 203122003231 is 132300221302.

It is not a de Polignac number, because 203122003231 - 2¹⁷ = 203121872159 is a prime.

It is a super-2 number, since 2×203122003231² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 203122003199 and 203122003208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203122003291) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94871421 + ... + 94873561.

It is an arithmetic number, because the mean of its divisors is an integer number (3995172720).

Almost surely, 2^203122003231 is an apocalyptic number.

203122003231 is a deficient number, since it is larger than the sum of its proper divisors (52569050849).

203122003231 is a wasteful number, since it uses less digits than its factorization.

203122003231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576.

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

Adding to 203122003231 its reverse (132300221302), we get a palindrome (335422224533).

The spelling of 203122003231 in words is "two hundred three billion, one hundred twenty-two million, three thousand, two hundred thirty-one".