20110429 has 2 divisors, whose sum is σ = 20110430. Its totient is φ = 20110428.

The previous prime is 20110411. The next prime is 20110481. The reversal of 20110429 is 92401102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12766329 + 7344100 = 3573^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110429 - 2⁵ = 20110397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055214 + 10055215.

It is an arithmetic number, because the mean of its divisors is an integer number (10055215).

Almost surely, 2^20110429 is an apocalyptic number.

It is an amenable number.

20110429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110429 is an equidigital number, since it uses as much as digits as its factorization.

20110429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 20110429 is about 4484.4652970003. The cubic root of 20110429 is about 271.9404290318.

The spelling of 20110429 in words is "twenty million, one hundred ten thousand, four hundred twenty-nine".