21000101107 has 2 divisors, whose sum is σ = 21000101108. Its totient is φ = 21000101106.

The previous prime is 21000101069. The next prime is 21000101141. The reversal of 21000101107 is 70110100012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21000101107 - 2¹⁵ = 21000068339 is a prime.

It is not a weakly prime, because it can be changed into another prime (21000101197) 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 as a sum of consecutive naturals, namely, 10500050553 + 10500050554.

It is an arithmetic number, because the mean of its divisors is an integer number (10500050554).

Almost surely, 2^21000101107 is an apocalyptic number.

21000101107 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000101107 is an equidigital number, since it uses as much as digits as its factorization.

21000101107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 13.

Adding to 21000101107 its reverse (70110100012), we get a palindrome (91110201119).

The spelling of 21000101107 in words is "twenty-one billion, one hundred one thousand, one hundred seven".