21050130123107 has 2 divisors, whose sum is σ = 21050130123108. Its totient is φ = 21050130123106.

The previous prime is 21050130123079. The next prime is 21050130123131. The reversal of 21050130123107 is 70132103105012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21050130123107 - 2²² = 21050125928803 is a prime.

It is not a weakly prime, because it can be changed into another prime (21050130123137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10525065061553 + 10525065061554.

It is an arithmetic number, because the mean of its divisors is an integer number (10525065061554).

Almost surely, 2^{21050130123107} is an apocalyptic number.

21050130123107 is a deficient number, since it is larger than the sum of its proper divisors (1).

21050130123107 is an equidigital number, since it uses as much as digits as its factorization.

21050130123107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

Adding to 21050130123107 its reverse (70132103105012), we get a palindrome (91182233228119).

The spelling of 21050130123107 in words is "twenty-one trillion, fifty billion, one hundred thirty million, one hundred twenty-three thousand, one hundred seven".