1132512021 has 36 divisors (see below), whose sum is σ = 1710770412. Its totient is φ = 721412352.

The previous prime is 1132511971. The next prime is 1132512023. The reversal of 1132512021 is 1202152311.

1132512021 is a `hidden beast` number, since 1 + 132 + 512 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1037741796 + 94770225 = 32214^2 + 9735^2 .

It is not a de Polignac number, because 1132512021 - 2¹⁰ = 1132510997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1132511985 and 1132512003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132512023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1158685 + ... + 1159661.

Almost surely, 2^1132512021 is an apocalyptic number.

It is an amenable number.

1132512021 is a deficient number, since it is larger than the sum of its proper divisors (578258391).

1132512021 is an equidigital number, since it uses as much as digits as its factorization.

1132512021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1132512021 is about 33652.8159445833. The cubic root of 1132512021 is about 1042.3516867145.

Adding to 1132512021 its reverse (1202152311), we get a palindrome (2334664332).

The spelling of 1132512021 in words is "one billion, one hundred thirty-two million, five hundred twelve thousand, twenty-one".