102021002001023 has 12 divisors (see below), whose sum is σ = 118678473517320. Its totient is φ = 87445850011632.

The previous prime is 102021002000999. The next prime is 102021002001089. The reversal of 102021002001023 is 320100200120201.

It is a happy number.

It is not a de Polignac number, because 102021002001023 - 2¹⁰ = 102021001999999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102021002000989 and 102021002001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021002001323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2580161 + ... + 14515482.

It is an arithmetic number, because the mean of its divisors is an integer number (9889872793110).

Almost surely, 2^{102021002001023} is an apocalyptic number.

102021002001023 is a deficient number, since it is larger than the sum of its proper divisors (16657471516297).

102021002001023 is a wasteful number, since it uses less digits than its factorization.

102021002001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17217446 (or 17217439 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 102021002001023 its reverse (320100200120201), we get a palindrome (422121202121224).

The spelling of 102021002001023 in words is "one hundred two trillion, twenty-one billion, two million, one thousand, twenty-three".