11112411421 has 4 divisors (see below), whose sum is σ = 11697275200. Its totient is φ = 10527547644.

The previous prime is 11112411397. The next prime is 11112411433. The reversal of 11112411421 is 12411421111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11112411421 - 2¹⁹ = 11111887133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 584863759 = 11112411421 / (1 + 1 + 1 + 1 + 2 + 4 + 1 + 1 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112411451) 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, 292431861 + ... + 292431898.

It is an arithmetic number, because the mean of its divisors is an integer number (2924318800).

Almost surely, 2^11112411421 is an apocalyptic number.

It is an amenable number.

11112411421 is a deficient number, since it is larger than the sum of its proper divisors (584863779).

11112411421 is an equidigital number, since it uses as much as digits as its factorization.

11112411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584863778.

The product of its digits is 64, while the sum is 19.

Adding to 11112411421 its reverse (12411421111), we get a palindrome (23523832532).

It can be divided in two parts, 111 and 12411421, that multiplied together give a palindrome (1377667731).

The spelling of 11112411421 in words is "eleven billion, one hundred twelve million, four hundred eleven thousand, four hundred twenty-one".