10291820021 has 8 divisors (see below), whose sum is σ = 11954901504. Its totient is φ = 8676943920.

The previous prime is 10291819969. The next prime is 10291820027. The reversal of 10291820021 is 12002819201.

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 10291820021 - 2¹⁰ = 10291818997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10291820027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12050885 + ... + 12051738.

It is an arithmetic number, because the mean of its divisors is an integer number (1494362688).

Almost surely, 2^10291820021 is an apocalyptic number.

It is an amenable number.

10291820021 is a deficient number, since it is larger than the sum of its proper divisors (1663081483).

10291820021 is an equidigital number, since it uses as much as digits as its factorization.

10291820021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24102691.

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

The spelling of 10291820021 in words is "ten billion, two hundred ninety-one million, eight hundred twenty thousand, twenty-one".