102000021007 has 2 divisors, whose sum is σ = 102000021008. Its totient is φ = 102000021006.

The previous prime is 102000021001. The next prime is 102000021041. The reversal of 102000021007 is 700120000201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102000021007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102000021001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000010503 + 51000010504.

It is an arithmetic number, because the mean of its divisors is an integer number (51000010504).

Almost surely, 2^102000021007 is an apocalyptic number.

102000021007 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000021007 is an equidigital number, since it uses as much as digits as its factorization.

102000021007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 13.

Adding to 102000021007 its reverse (700120000201), we get a palindrome (802120021208).

The spelling of 102000021007 in words is "one hundred two billion, twenty-one thousand, seven".