1110240421 has 4 divisors (see below), whose sum is σ = 1113385932. Its totient is φ = 1107094912.

The previous prime is 1110240377. The next prime is 1110240431. The reversal of 1110240421 is 1240420111.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 789329025 + 320911396 = 28095^2 + 17914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110240421 - 2¹⁹ = 1109716133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110240395 and 1110240404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110240431) 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, 1572226 + ... + 1572931.

It is an arithmetic number, because the mean of its divisors is an integer number (278346483).

Almost surely, 2^1110240421 is an apocalyptic number.

It is an amenable number.

1110240421 is a deficient number, since it is larger than the sum of its proper divisors (3145511).

1110240421 is an equidigital number, since it uses as much as digits as its factorization.

1110240421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145510.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1110240421 is about 33320.2704220719. The cubic root of 1110240421 is about 1035.4735542910.

Adding to 1110240421 its reverse (1240420111), we get a palindrome (2350660532).

The spelling of 1110240421 in words is "one billion, one hundred ten million, two hundred forty thousand, four hundred twenty-one".