29403243421 has 2 divisors, whose sum is σ = 29403243422. Its totient is φ = 29403243420.

The previous prime is 29403243409. The next prime is 29403243433. The reversal of 29403243421 is 12434230492.

It is a balanced prime because it is at equal distance from previous prime (29403243409) and next prime (29403243433).

It can be written as a sum of positive squares in only one way, i.e., 28220640100 + 1182603321 = 167990^2 + 34389^2 .

It is a cyclic number.

It is not a de Polignac number, because 29403243421 - 2⁹ = 29403242909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29403243491) 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, 14701621710 + 14701621711.

It is an arithmetic number, because the mean of its divisors is an integer number (14701621711).

Almost surely, 2^29403243421 is an apocalyptic number.

It is an amenable number.

29403243421 is a deficient number, since it is larger than the sum of its proper divisors (1).

29403243421 is an equidigital number, since it uses as much as digits as its factorization.

29403243421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 29403243421 in words is "twenty-nine billion, four hundred three million, two hundred forty-three thousand, four hundred twenty-one".