1031210123123 has 8 divisors (see below), whose sum is σ = 1039429946880. Its totient is φ = 1022991863040.

The previous prime is 1031210123093. The next prime is 1031210123129. The reversal of 1031210123123 is 3213210121301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1031210123123 - 2³⁶ = 962490646387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031210123095 and 1031210123104.

It is not an unprimeable number, because it can be changed into a prime (1031210123129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951593 + ... + 1722773.

It is an arithmetic number, because the mean of its divisors is an integer number (129928743360).

Almost surely, 2^{1031210123123} is an apocalyptic number.

1031210123123 is a deficient number, since it is larger than the sum of its proper divisors (8219823757).

1031210123123 is a wasteful number, since it uses less digits than its factorization.

1031210123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781837.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1031210123123 its reverse (3213210121301), we get a palindrome (4244420244424).

The spelling of 1031210123123 in words is "one trillion, thirty-one billion, two hundred ten million, one hundred twenty-three thousand, one hundred twenty-three".