20321002229 has 16 divisors (see below), whose sum is σ = 22578963840. Its totient is φ = 18133752000.

The previous prime is 20321002223. The next prime is 20321002237. The reversal of 20321002229 is 92220012302.

It is a cyclic number.

It is not a de Polignac number, because 20321002229 - 2⁴ = 20321002213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321002223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122039 + ... + 235659.

It is an arithmetic number, because the mean of its divisors is an integer number (1411185240).

Almost surely, 2^20321002229 is an apocalyptic number.

It is an amenable number.

20321002229 is a deficient number, since it is larger than the sum of its proper divisors (2257961611).

20321002229 is a wasteful number, since it uses less digits than its factorization.

20321002229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113932.

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 20321002229 in words is "twenty billion, three hundred twenty-one million, two thousand, two hundred twenty-nine".