10890052021 has 4 divisors (see below), whose sum is σ = 10892140672. Its totient is φ = 10887963372.

The previous prime is 10890052013. The next prime is 10890052051. The reversal of 10890052021 is 12025009801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10890052021 - 2³ = 10890052013 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 (10890052051) 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, 1036485 + ... + 1046938.

It is an arithmetic number, because the mean of its divisors is an integer number (2723035168).

Almost surely, 2^10890052021 is an apocalyptic number.

It is an amenable number.

10890052021 is a deficient number, since it is larger than the sum of its proper divisors (2088651).

10890052021 is an equidigital number, since it uses as much as digits as its factorization.

10890052021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088650.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 10890052021 in words is "ten billion, eight hundred ninety million, fifty-two thousand, twenty-one".