1133412021 has 28 divisors (see below), whose sum is σ = 1942112352. Its totient is φ = 647661096.

The previous prime is 1133412019. The next prime is 1133412029. The reversal of 1133412021 is 1202143311.

It is not a de Polignac number, because 1133412021 - 2¹ = 1133412019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1133411985 and 1133412003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133412029) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 105951 + ... + 116156.

Almost surely, 2^1133412021 is an apocalyptic number.

It is an amenable number.

1133412021 is a deficient number, since it is larger than the sum of its proper divisors (808700331).

1133412021 is an frugal number, since it uses more digits than its factorization.

1133412021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222132 (or 222117 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1133412021 is about 33666.1851269193. The cubic root of 1133412021 is about 1042.6277303253.

Adding to 1133412021 its reverse (1202143311), we get a palindrome (2335555332).

The spelling of 1133412021 in words is "one billion, one hundred thirty-three million, four hundred twelve thousand, twenty-one".