490111121 has 4 divisors (see below), whose sum is σ = 490158372. Its totient is φ = 490063872.

The previous prime is 490111093. The next prime is 490111133. The reversal of 490111121 is 121111094.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 356454400 + 133656721 = 18880^2 + 11561^2 .

It is a cyclic number.

It is not a de Polignac number, because 490111121 - 2⁶ = 490111057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 490111093 and 490111102.

It is not an unprimeable number, because it can be changed into a prime (490111151) 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, 560 + ... + 31313.

It is an arithmetic number, because the mean of its divisors is an integer number (122539593).

Almost surely, 2^490111121 is an apocalyptic number.

It is an amenable number.

490111121 is a deficient number, since it is larger than the sum of its proper divisors (47251).

490111121 is a wasteful number, since it uses less digits than its factorization.

490111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47250.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 490111121 is about 22138.4534464357. The cubic root of 490111121 is about 788.4331069446.

The spelling of 490111121 in words is "four hundred ninety million, one hundred eleven thousand, one hundred twenty-one".