11134433421 has 20 divisors (see below), whose sum is σ = 17082462012. Its totient is φ = 7222333248.

The previous prime is 11134433411. The next prime is 11134433461. The reversal of 11134433421 is 12433443111.

It can be written as a sum of positive squares in 2 ways, for example, as 4030472196 + 7103961225 = 63486^2 + 84285^2 .

It is not a de Polignac number, because 11134433421 - 2⁵ = 11134433389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11134433411) 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 19 ways as a sum of consecutive naturals, for example, 1854600 + ... + 1860593.

Almost surely, 2^11134433421 is an apocalyptic number.

It is an amenable number.

11134433421 is a deficient number, since it is larger than the sum of its proper divisors (5948028591).

11134433421 is an equidigital number, since it uses as much as digits as its factorization.

11134433421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715242 (or 3715233 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 11134433421 its reverse (12433443111), we get a palindrome (23567876532).

The spelling of 11134433421 in words is "eleven billion, one hundred thirty-four million, four hundred thirty-three thousand, four hundred twenty-one".