20035042429 has 2 divisors, whose sum is σ = 20035042430. Its totient is φ = 20035042428.

The previous prime is 20035042381. The next prime is 20035042439. The reversal of 20035042429 is 92424053002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16978611204 + 3056431225 = 130302^2 + 55285^2 .

It is a cyclic number.

It is not a de Polignac number, because 20035042429 - 2⁷ = 20035042301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20035042429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20035042439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10017521214 + 10017521215.

It is an arithmetic number, because the mean of its divisors is an integer number (10017521215).

Almost surely, 2^20035042429 is an apocalyptic number.

It is an amenable number.

20035042429 is a deficient number, since it is larger than the sum of its proper divisors (1).

20035042429 is an equidigital number, since it uses as much as digits as its factorization.

20035042429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 20035042429 in words is "twenty billion, thirty-five million, forty-two thousand, four hundred twenty-nine".