1021213102023 has 12 divisors (see below), whose sum is σ = 1480410814168. Its totient is φ = 678350939760.

The previous prime is 1021213102009. The next prime is 1021213102051. The reversal of 1021213102023 is 3202013121201.

It is not a de Polignac number, because 1021213102023 - 2⁵ = 1021213101991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021213101987 and 1021213102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021213102423) 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 11 ways as a sum of consecutive naturals, for example, 204813613 + ... + 204818598.

Almost surely, 2^{1021213102023} is an apocalyptic number.

1021213102023 is a deficient number, since it is larger than the sum of its proper divisors (459197712145).

1021213102023 is a wasteful number, since it uses less digits than its factorization.

1021213102023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409632494 (or 409632491 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1021213102023 its reverse (3202013121201), we get a palindrome (4223226223224).

The spelling of 1021213102023 in words is "one trillion, twenty-one billion, two hundred thirteen million, one hundred two thousand, twenty-three".