20680041229 has 4 divisors (see below), whose sum is σ = 20700537820. Its totient is φ = 20659544640.

The previous prime is 20680041223. The next prime is 20680041257. The reversal of 20680041229 is 92214008602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92214008602 = 2 ⋅46107004301.

It can be written as a sum of positive squares in 2 ways, for example, as 7294014025 + 13386027204 = 85405^2 + 115698^2 .

It is a cyclic number.

It is not a de Polignac number, because 20680041229 - 2⁷ = 20680041101 is a prime.

It is a super-3 number, since 3×20680041229³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20680041194 and 20680041203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20680041223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10246782 + ... + 10248799.

It is an arithmetic number, because the mean of its divisors is an integer number (5175134455).

Almost surely, 2^20680041229 is an apocalyptic number.

It is an amenable number.

20680041229 is a deficient number, since it is larger than the sum of its proper divisors (20496591).

20680041229 is a wasteful number, since it uses less digits than its factorization.

20680041229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20496590.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 20680041229 in words is "twenty billion, six hundred eighty million, forty-one thousand, two hundred twenty-nine".