201820101029 has 8 divisors (see below), whose sum is σ = 202088193600. Its totient is φ = 201552126336.

The previous prime is 201820101013. The next prime is 201820101053. The reversal of 201820101029 is 920101028102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201820101029 - 2⁴ = 201820101013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201820100989 and 201820101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201820101059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3706997 + ... + 3761045.

It is an arithmetic number, because the mean of its divisors is an integer number (25261024200).

Almost surely, 2^201820101029 is an apocalyptic number.

It is an amenable number.

201820101029 is a deficient number, since it is larger than the sum of its proper divisors (268092571).

201820101029 is an equidigital number, since it uses as much as digits as its factorization.

201820101029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58939.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 201820101029 in words is "two hundred one billion, eight hundred twenty million, one hundred one thousand, twenty-nine".