10040170921 has 16 divisors (see below), whose sum is σ = 11213725248. Its totient is φ = 8910316800.

The previous prime is 10040170919. The next prime is 10040170937. The reversal of 10040170921 is 12907104001.

10040170921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10040170921 - 2¹ = 10040170919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10040170961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1081861 + ... + 1091101.

It is an arithmetic number, because the mean of its divisors is an integer number (700857828).

Almost surely, 2^10040170921 is an apocalyptic number.

10040170921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10040170921 is a deficient number, since it is larger than the sum of its proper divisors (1173554327).

10040170921 is a wasteful number, since it uses less digits than its factorization.

10040170921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11592.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 10040170921 its reverse (12907104001), we get a palindrome (22947274922).

The spelling of 10040170921 in words is "ten billion, forty million, one hundred seventy thousand, nine hundred twenty-one".