102102300021 has 8 divisors (see below), whose sum is σ = 137408703264. Its totient is φ = 67432048400.

The previous prime is 102102299993. The next prime is 102102300029. The reversal of 102102300021 is 120003201201.

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 102102300021 - 2¹⁴ = 102102283637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102300029) 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, 159037530 + ... + 159038171.

It is an arithmetic number, because the mean of its divisors is an integer number (17176087908).

Almost surely, 2^102102300021 is an apocalyptic number.

It is an amenable number.

102102300021 is a deficient number, since it is larger than the sum of its proper divisors (35306403243).

102102300021 is a wasteful number, since it uses less digits than its factorization.

102102300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318075811.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 102102300021 its reverse (120003201201), we get a palindrome (222105501222).

The spelling of 102102300021 in words is "one hundred two billion, one hundred two million, three hundred thousand, twenty-one".