1021231103023 has 4 divisors (see below), whose sum is σ = 1036473358360. Its totient is φ = 1005988847688.

The previous prime is 1021231103021. The next prime is 1021231103077. The reversal of 1021231103023 is 3203011321201.

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 1021231103023 - 2¹ = 1021231103021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021231103021) 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, 7621127568 + ... + 7621127701.

It is an arithmetic number, because the mean of its divisors is an integer number (259118339590).

Almost surely, 2^{1021231103023} is an apocalyptic number.

1021231103023 is a deficient number, since it is larger than the sum of its proper divisors (15242255337).

1021231103023 is an equidigital number, since it uses as much as digits as its factorization.

1021231103023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15242255336.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1021231103023 its reverse (3203011321201), we get a palindrome (4224242424224).

The spelling of 1021231103023 in words is "one trillion, twenty-one billion, two hundred thirty-one million, one hundred three thousand, twenty-three".