21010001030429 has 2 divisors, whose sum is σ = 21010001030430. Its totient is φ = 21010001030428.

The previous prime is 21010001030273. The next prime is 21010001030449. The reversal of 21010001030429 is 92403010001012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19189673882404 + 1820327148025 = 4380602^2 + 1349195^2 .

It is a cyclic number.

It is not a de Polignac number, because 21010001030429 - 2¹⁶ = 21010000964893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21010001030449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505000515214 + 10505000515215.

It is an arithmetic number, because the mean of its divisors is an integer number (10505000515215).

Almost surely, 2^{21010001030429} is an apocalyptic number.

It is an amenable number.

21010001030429 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010001030429 is an equidigital number, since it uses as much as digits as its factorization.

21010001030429 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 23.

The spelling of 21010001030429 in words is "twenty-one trillion, ten billion, one million, thirty thousand, four hundred twenty-nine".