11132331421 has 4 divisors (see below), whose sum is σ = 11135099872. Its totient is φ = 11129562972.

The previous prime is 11132331383. The next prime is 11132331449. The reversal of 11132331421 is 12413323111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12413323111 = 7 ⋅1773331873.

It is a cyclic number.

It is not a de Polignac number, because 11132331421 - 2¹⁹ = 11131807133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11132331392 and 11132331401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132331461) 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 3 ways as a sum of consecutive naturals, for example, 1378185 + ... + 1386238.

It is an arithmetic number, because the mean of its divisors is an integer number (2783774968).

Almost surely, 2^11132331421 is an apocalyptic number.

It is an amenable number.

11132331421 is a deficient number, since it is larger than the sum of its proper divisors (2768451).

11132331421 is an equidigital number, since it uses as much as digits as its factorization.

11132331421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2768450.

The product of its digits is 432, while the sum is 22.

Adding to 11132331421 its reverse (12413323111), we get a palindrome (23545654532).

The spelling of 11132331421 in words is "eleven billion, one hundred thirty-two million, three hundred thirty-one thousand, four hundred twenty-one".