102003023021 has 8 divisors (see below), whose sum is σ = 108434690400. Its totient is φ = 95677664400.

The previous prime is 102003022963. The next prime is 102003023039. The reversal of 102003023021 is 120320300201.

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 102003023021 - 2³⁴ = 84823153837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102003022987 and 102003023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102003023041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26575211 + ... + 26579048.

It is an arithmetic number, because the mean of its divisors is an integer number (13554336300).

Almost surely, 2^102003023021 is an apocalyptic number.

It is an amenable number.

102003023021 is a deficient number, since it is larger than the sum of its proper divisors (6431667379).

102003023021 is a wasteful number, since it uses less digits than its factorization.

102003023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53154379.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 102003023021 its reverse (120320300201), we get a palindrome (222323323222).

The spelling of 102003023021 in words is "one hundred two billion, three million, twenty-three thousand, twenty-one".