1133244021 has 48 divisors (see below), whose sum is σ = 2004295104. Its totient is φ = 562576896.

The previous prime is 1133244001. The next prime is 1133244041. The reversal of 1133244021 is 1204423311.

It is an interprime number because it is at equal distance from previous prime (1133244001) and next prime (1133244041).

It is not a de Polignac number, because 1133244021 - 2⁵ = 1133243989 is a prime.

It is a super-2 number, since 2×1133244021² = 2568484022264496882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133244001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15046 + ... + 49928.

It is an arithmetic number, because the mean of its divisors is an integer number (41756148).

Almost surely, 2^1133244021 is an apocalyptic number.

It is an amenable number.

1133244021 is a deficient number, since it is larger than the sum of its proper divisors (871051083).

1133244021 is a wasteful number, since it uses less digits than its factorization.

1133244021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34930 (or 34923 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1133244021 is about 33663.6899492614. The cubic root of 1133244021 is about 1042.5762132805.

Adding to 1133244021 its reverse (1204423311), we get a palindrome (2337667332).

The spelling of 1133244021 in words is "one billion, one hundred thirty-three million, two hundred forty-four thousand, twenty-one".