10853021021 has 8 divisors (see below), whose sum is σ = 11108746944. Its totient is φ = 10600152640.

The previous prime is 10853020963. The next prime is 10853021029. The reversal of 10853021021 is 12012035801.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10853021021 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 (10853021029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706700 + ... + 721893.

It is an arithmetic number, because the mean of its divisors is an integer number (1388593368).

Almost surely, 2^10853021021 is an apocalyptic number.

It is an amenable number.

10853021021 is a deficient number, since it is larger than the sum of its proper divisors (255725923).

10853021021 is a wasteful number, since it uses less digits than its factorization.

10853021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428771.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 10853021021 its reverse (12012035801), we get a palindrome (22865056822).

The spelling of 10853021021 in words is "ten billion, eight hundred fifty-three million, twenty-one thousand, twenty-one".