1031123003123 has 4 divisors (see below), whose sum is σ = 1046512898760. Its totient is φ = 1015733107488.

The previous prime is 1031123003111. The next prime is 1031123003161. The reversal of 1031123003123 is 3213003211301.

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 1031123003123 - 2²⁶ = 1031055894259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031123003095 and 1031123003104.

It is not an unprimeable number, because it can be changed into a prime (1031123003623) 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, 7694947718 + ... + 7694947851.

It is an arithmetic number, because the mean of its divisors is an integer number (261628224690).

Almost surely, 2^{1031123003123} is an apocalyptic number.

1031123003123 is a deficient number, since it is larger than the sum of its proper divisors (15389895637).

1031123003123 is an equidigital number, since it uses as much as digits as its factorization.

1031123003123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15389895636.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1031123003123 its reverse (3213003211301), we get a palindrome (4244126214424).

The spelling of 1031123003123 in words is "one trillion, thirty-one billion, one hundred twenty-three million, three thousand, one hundred twenty-three".