20041310129 has 2 divisors, whose sum is σ = 20041310130. Its totient is φ = 20041310128.

The previous prime is 20041310123. The next prime is 20041310161. The reversal of 20041310129 is 92101314002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18401465104 + 1639845025 = 135652^2 + 40495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20041310129 is a prime.

It is a super-2 number, since 2×20041310129² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20041310123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020655064 + 10020655065.

It is an arithmetic number, because the mean of its divisors is an integer number (10020655065).

Almost surely, 2^20041310129 is an apocalyptic number.

It is an amenable number.

20041310129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041310129 is an equidigital number, since it uses as much as digits as its factorization.

20041310129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 20041310129 in words is "twenty billion, forty-one million, three hundred ten thousand, one hundred twenty-nine".