102321300021 has 16 divisors (see below), whose sum is σ = 138676659840. Its totient is φ = 67090259520.

The previous prime is 102321300019. The next prime is 102321300023. The reversal of 102321300021 is 120003123201.

It is an interprime number because it is at equal distance from previous prime (102321300019) and next prime (102321300023).

It is not a de Polignac number, because 102321300021 - 2¹ = 102321300019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102321300023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4311175 + ... + 4334843.

It is an arithmetic number, because the mean of its divisors is an integer number (8667291240).

Almost surely, 2^102321300021 is an apocalyptic number.

It is an amenable number.

102321300021 is a deficient number, since it is larger than the sum of its proper divisors (36355359819).

102321300021 is a wasteful number, since it uses less digits than its factorization.

102321300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47356.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102321300021 its reverse (120003123201), we get a palindrome (222324423222).

The spelling of 102321300021 in words is "one hundred two billion, three hundred twenty-one million, three hundred thousand, twenty-one".