21300104029 has 2 divisors, whose sum is σ = 21300104030. Its totient is φ = 21300104028.

The previous prime is 21300104003. The next prime is 21300104039. The reversal of 21300104029 is 92040100312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20021684004 + 1278420025 = 141498^2 + 35755^2 .

It is a cyclic number.

It is not a de Polignac number, because 21300104029 - 2⁷ = 21300103901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21300104039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650052014 + 10650052015.

It is an arithmetic number, because the mean of its divisors is an integer number (10650052015).

Almost surely, 2^21300104029 is an apocalyptic number.

It is an amenable number.

21300104029 is a deficient number, since it is larger than the sum of its proper divisors (1).

21300104029 is an equidigital number, since it uses as much as digits as its factorization.

21300104029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 21300104029 in words is "twenty-one billion, three hundred million, one hundred four thousand, twenty-nine".