1031203332123 has 4 divisors (see below), whose sum is σ = 1374937776168. Its totient is φ = 687468888080.

The previous prime is 1031203332119. The next prime is 1031203332149. The reversal of 1031203332123 is 3212333021301.

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

It is a cyclic number.

It is not a de Polignac number, because 1031203332123 - 2² = 1031203332119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031203332093 and 1031203332102.

It is not an unprimeable number, because it can be changed into a prime (1031203312123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171867222018 + ... + 171867222023.

It is an arithmetic number, because the mean of its divisors is an integer number (343734444042).

Almost surely, 2^{1031203332123} is an apocalyptic number.

1031203332123 is a deficient number, since it is larger than the sum of its proper divisors (343734444045).

1031203332123 is an equidigital number, since it uses as much as digits as its factorization.

1031203332123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343734444044.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1031203332123 its reverse (3212333021301), we get a palindrome (4243536353424).

The spelling of 1031203332123 in words is "one trillion, thirty-one billion, two hundred three million, three hundred thirty-two thousand, one hundred twenty-three".