450990110111 has 4 divisors (see below), whose sum is σ = 470598375792. Its totient is φ = 431381844432.

The previous prime is 450990110093. The next prime is 450990110159. The reversal of 450990110111 is 111011099054.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 450990110111 - 2¹⁸ = 450989847967 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 (450990110911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9804132806 + ... + 9804132851.

It is an arithmetic number, because the mean of its divisors is an integer number (117649593948).

Almost surely, 2^450990110111 is an apocalyptic number.

450990110111 is a deficient number, since it is larger than the sum of its proper divisors (19608265681).

450990110111 is a wasteful number, since it uses less digits than its factorization.

450990110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608265680.

The product of its (nonzero) digits is 1620, while the sum is 32.

The spelling of 450990110111 in words is "four hundred fifty billion, nine hundred ninety million, one hundred ten thousand, one hundred eleven".