21200232107 has 2 divisors, whose sum is σ = 21200232108. Its totient is φ = 21200232106.

The previous prime is 21200232061. The next prime is 21200232127. The reversal of 21200232107 is 70123200212.

It is an a-pointer prime, because the next prime (21200232127) can be obtained adding 21200232107 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21200232107 - 2²⁴ = 21183454891 is a prime.

It is not a weakly prime, because it can be changed into another prime (21200232127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600116053 + 10600116054.

It is an arithmetic number, because the mean of its divisors is an integer number (10600116054).

Almost surely, 2^21200232107 is an apocalyptic number.

21200232107 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200232107 is an equidigital number, since it uses as much as digits as its factorization.

21200232107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 21200232107 its reverse (70123200212), we get a palindrome (91323432319).

The spelling of 21200232107 in words is "twenty-one billion, two hundred million, two hundred thirty-two thousand, one hundred seven".