203222031123 has 16 divisors (see below), whose sum is σ = 271877213600. Its totient is φ = 135024744960.

The previous prime is 203222031107. The next prime is 203222031149. The reversal of 203222031123 is 321130222302.

It is a happy number.

It is not a de Polignac number, because 203222031123 - 2⁴ = 203222031107 is a prime.

It is a super-2 number, since 2×203222031123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203222031123.

It is not an unprimeable number, because it can be changed into a prime (203222031823) 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, 1194633 + ... + 1354101.

It is an arithmetic number, because the mean of its divisors is an integer number (16992325850).

Almost surely, 2^203222031123 is an apocalyptic number.

203222031123 is a deficient number, since it is larger than the sum of its proper divisors (68655182477).

203222031123 is a wasteful number, since it uses less digits than its factorization.

203222031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160902.

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

Adding to 203222031123 its reverse (321130222302), we get a palindrome (524352253425).

The spelling of 203222031123 in words is "two hundred three billion, two hundred twenty-two million, thirty-one thousand, one hundred twenty-three".