11404002421 has 16 divisors (see below), whose sum is σ = 13368240000. Its totient is φ = 9526016448.

The previous prime is 11404002391. The next prime is 11404002433. The reversal of 11404002421 is 12420040411.

It is a cyclic number.

It is not a de Polignac number, because 11404002421 - 2¹⁵ = 11403969653 is a prime.

It is a super-2 number, since 2×11404002421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11404002461) 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 15 ways as a sum of consecutive naturals, for example, 47871 + ... + 158428.

It is an arithmetic number, because the mean of its divisors is an integer number (835515000).

Almost surely, 2^11404002421 is an apocalyptic number.

It is an amenable number.

11404002421 is a deficient number, since it is larger than the sum of its proper divisors (1964237579).

11404002421 is a wasteful number, since it uses less digits than its factorization.

11404002421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206508.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 11404002421 its reverse (12420040411), we get a palindrome (23824042832).

The spelling of 11404002421 in words is "eleven billion, four hundred four million, two thousand, four hundred twenty-one".