11403433421 has 8 divisors (see below), whose sum is σ = 12021740544. Its totient is φ = 10800779760.

The previous prime is 11403433399. The next prime is 11403433463. The reversal of 11403433421 is 12433430411.

It is a happy number.

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-11403433421 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 (11403433721) 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 7 ways as a sum of consecutive naturals, for example, 3911870 + ... + 3914783.

It is an arithmetic number, because the mean of its divisors is an integer number (1502717568).

Almost surely, 2^11403433421 is an apocalyptic number.

It is an amenable number.

11403433421 is a deficient number, since it is larger than the sum of its proper divisors (618307123).

11403433421 is an equidigital number, since it uses as much as digits as its factorization.

11403433421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7826731.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 11403433421 its reverse (12433430411), we get a palindrome (23836863832).

The spelling of 11403433421 in words is "eleven billion, four hundred three million, four hundred thirty-three thousand, four hundred twenty-one".