1113110442421 has 4 divisors (see below), whose sum is σ = 1140259477644. Its totient is φ = 1085961407200.

The previous prime is 1113110442419. The next prime is 1113110442427. The reversal of 1113110442421 is 1242440113111.

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 594834275025 + 518276167396 = 771255^2 + 719914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113110442421 - 2¹ = 1113110442419 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 (1113110442427) 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 3 ways as a sum of consecutive naturals, for example, 13574517550 + ... + 13574517631.

It is an arithmetic number, because the mean of its divisors is an integer number (285064869411).

Almost surely, 2^{1113110442421} is an apocalyptic number.

It is an amenable number.

1113110442421 is a deficient number, since it is larger than the sum of its proper divisors (27149035223).

1113110442421 is an equidigital number, since it uses as much as digits as its factorization.

1113110442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27149035222.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 1113110442421 its reverse (1242440113111), we get a palindrome (2355550555532).

The spelling of 1113110442421 in words is "one trillion, one hundred thirteen billion, one hundred ten million, four hundred forty-two thousand, four hundred twenty-one".