9100911421 has 8 divisors (see below), whose sum is σ = 10547535744. Its totient is φ = 7690910640.

The previous prime is 9100911373. The next prime is 9100911451. The reversal of 9100911421 is 1241190019.

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

It is not a de Polignac number, because 9100911421 - 2⁷ = 9100911293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9100911421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9100911451) 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, 9155350 + ... + 9156343.

It is an arithmetic number, because the mean of its divisors is an integer number (1318441968).

Almost surely, 2^9100911421 is an apocalyptic number.

It is an amenable number.

9100911421 is a deficient number, since it is larger than the sum of its proper divisors (1446624323).

9100911421 is a wasteful number, since it uses less digits than its factorization.

9100911421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18311771.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 9100911421 is about 95398.6971661563. The cubic root of 9100911421 is about 2087.8291769898.

The spelling of 9100911421 in words is "nine billion, one hundred million, nine hundred eleven thousand, four hundred twenty-one".