331203111123 has 4 divisors (see below), whose sum is σ = 441604148168. Its totient is φ = 220802074080.

The previous prime is 331203111103. The next prime is 331203111131. The reversal of 331203111123 is 321111302133.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 331203111123 - 2⁸ = 331203110867 is a prime.

It is a super-2 number, since 2×331203111123² (a number of 24 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 331203111123.

It is not an unprimeable number, because it can be changed into a prime (331203111103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55200518518 + ... + 55200518523.

It is an arithmetic number, because the mean of its divisors is an integer number (110401037042).

Almost surely, 2^331203111123 is an apocalyptic number.

331203111123 is a deficient number, since it is larger than the sum of its proper divisors (110401037045).

331203111123 is a wasteful number, since it uses less digits than its factorization.

331203111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110401037044.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 331203111123 its reverse (321111302133), we get a palindrome (652314413256).

The spelling of 331203111123 in words is "three hundred thirty-one billion, two hundred three million, one hundred eleven thousand, one hundred twenty-three".