20040029017 has 2 divisors, whose sum is σ = 20040029018. Its totient is φ = 20040029016.

The previous prime is 20040028889. The next prime is 20040029033. The reversal of 20040029017 is 71092004002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13367753161 + 6672275856 = 115619^2 + 81684^2 .

It is a cyclic number.

It is not a de Polignac number, because 20040029017 - 2⁷ = 20040028889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20040028982 and 20040029000.

It is not a weakly prime, because it can be changed into another prime (20040029057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020014508 + 10020014509.

It is an arithmetic number, because the mean of its divisors is an integer number (10020014509).

Almost surely, 2^20040029017 is an apocalyptic number.

It is an amenable number.

20040029017 is a deficient number, since it is larger than the sum of its proper divisors (1).

20040029017 is an equidigital number, since it uses as much as digits as its factorization.

20040029017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The spelling of 20040029017 in words is "twenty billion, forty million, twenty-nine thousand, seventeen".