11312304421 has 8 divisors (see below), whose sum is σ = 12627689184. Its totient is φ = 10044751920.

The previous prime is 11312304403. The next prime is 11312304431. The reversal of 11312304421 is 12440321311.

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

It is a cyclic number.

It is not a de Polignac number, because 11312304421 - 2¹¹ = 11312302373 is a prime.

It is a super-2 number, since 2×11312304421² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11312304392 and 11312304401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312304431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11957566 + ... + 11958511.

It is an arithmetic number, because the mean of its divisors is an integer number (1578461148).

Almost surely, 2^11312304421 is an apocalyptic number.

11312304421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11312304421 is a deficient number, since it is larger than the sum of its proper divisors (1315384763).

11312304421 is a wasteful number, since it uses less digits than its factorization.

11312304421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23916131.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 11312304421 its reverse (12440321311), we get a palindrome (23752625732).

The spelling of 11312304421 in words is "eleven billion, three hundred twelve million, three hundred four thousand, four hundred twenty-one".