11213404421 has 8 divisors (see below), whose sum is σ = 11564534784. Its totient is φ = 10866381120.

The previous prime is 11213404403. The next prime is 11213404427. The reversal of 11213404421 is 12440431211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11213404421 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 (11213404427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1021220 + ... + 1032141.

It is an arithmetic number, because the mean of its divisors is an integer number (1445566848).

Almost surely, 2^11213404421 is an apocalyptic number.

It is an amenable number.

11213404421 is a deficient number, since it is larger than the sum of its proper divisors (351130363).

11213404421 is a wasteful number, since it uses less digits than its factorization.

11213404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053531.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 11213404421 its reverse (12440431211), we get a palindrome (23653835632).

The spelling of 11213404421 in words is "eleven billion, two hundred thirteen million, four hundred four thousand, four hundred twenty-one".