10921900803 has 12 divisors (see below), whose sum is σ = 16006753224. Its totient is φ = 6619333600.

The previous prime is 10921900789. The next prime is 10921900823. The reversal of 10921900803 is 30800912901.

It is not a de Polignac number, because 10921900803 - 2⁵ = 10921900771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (10921900823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15043578 + ... + 15044303.

It is an arithmetic number, because the mean of its divisors is an integer number (1333896102).

Almost surely, 2^10921900803 is an apocalyptic number.

10921900803 is a deficient number, since it is larger than the sum of its proper divisors (5084852421).

10921900803 is a wasteful number, since it uses less digits than its factorization.

10921900803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30087906 (or 30087895 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

It can be divided in two parts, 109 and 21900803, that added together give a palindrome (21900912).

The spelling of 10921900803 in words is "ten billion, nine hundred twenty-one million, nine hundred thousand, eight hundred three".