1133144421 has 8 divisors (see below), whose sum is σ = 1511777664. Its totient is φ = 754970400.

The previous prime is 1133144417. The next prime is 1133144423. The reversal of 1133144421 is 1244413311.

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

It is not a de Polignac number, because 1133144421 - 2² = 1133144417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1133144391 and 1133144400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133144423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109005 + ... + 118946.

It is an arithmetic number, because the mean of its divisors is an integer number (188972208).

Almost surely, 2^1133144421 is an apocalyptic number.

It is an amenable number.

1133144421 is a deficient number, since it is larger than the sum of its proper divisors (378633243).

1133144421 is a wasteful number, since it uses less digits than its factorization.

1133144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229611.

The product of its digits is 1152, while the sum is 24.

The square root of 1133144421 is about 33662.2105780354. The cubic root of 1133144421 is about 1042.5456686283.

Adding to 1133144421 its reverse (1244413311), we get a palindrome (2377557732).

The spelling of 1133144421 in words is "one billion, one hundred thirty-three million, one hundred forty-four thousand, four hundred twenty-one".