20412002129 has 2 divisors, whose sum is σ = 20412002130. Its totient is φ = 20412002128.

The previous prime is 20412002087. The next prime is 20412002159. The reversal of 20412002129 is 92120021402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10307731729 + 10104270400 = 101527^2 + 100520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20412002129 is a prime.

It is not a weakly prime, because it can be changed into another prime (20412002159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206001064 + 10206001065.

It is an arithmetic number, because the mean of its divisors is an integer number (10206001065).

Almost surely, 2^20412002129 is an apocalyptic number.

It is an amenable number.

20412002129 is a deficient number, since it is larger than the sum of its proper divisors (1).

20412002129 is an equidigital number, since it uses as much as digits as its factorization.

20412002129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 20412002129 in words is "twenty billion, four hundred twelve million, two thousand, one hundred twenty-nine".