203102223231 has 32 divisors (see below), whose sum is σ = 286996469760. Its totient is φ = 127540473984.

The previous prime is 203102223229. The next prime is 203102223263. The reversal of 203102223231 is 132322201302.

It is a happy number.

It is not a de Polignac number, because 203102223231 - 2¹ = 203102223229 is a prime.

It is a super-2 number, since 2×203102223231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203102223198 and 203102223207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203102223211) 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, 3159250 + ... + 3222896.

It is an arithmetic number, because the mean of its divisors is an integer number (8968639680).

Almost surely, 2^203102223231 is an apocalyptic number.

203102223231 is a deficient number, since it is larger than the sum of its proper divisors (83894246529).

203102223231 is a wasteful number, since it uses less digits than its factorization.

203102223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64575.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 203102223231 its reverse (132322201302), we get a palindrome (335424424533).

The spelling of 203102223231 in words is "two hundred three billion, one hundred two million, two hundred twenty-three thousand, two hundred thirty-one".