1032213121 has 4 divisors (see below), whose sum is σ = 1032284500. Its totient is φ = 1032141744.

The previous prime is 1032213079. The next prime is 1032213137. The reversal of 1032213121 is 1213122301.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1213122301 = 67 ⋅18106303.

It can be written as a sum of positive squares in 2 ways, for example, as 312900721 + 719312400 = 17689^2 + 26820^2 .

It is a cyclic number.

It is not a de Polignac number, because 1032213121 - 2⁹ = 1032212609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1032213095 and 1032213104.

It is not an unprimeable number, because it can be changed into a prime (1032213421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5466 + ... + 45763.

It is an arithmetic number, because the mean of its divisors is an integer number (258071125).

Almost surely, 2^1032213121 is an apocalyptic number.

It is an amenable number.

1032213121 is a deficient number, since it is larger than the sum of its proper divisors (71379).

1032213121 is an equidigital number, since it uses as much as digits as its factorization.

1032213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71378.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1032213121 is about 32128.0737206575. The cubic root of 1032213121 is about 1010.6244287571.

Adding to 1032213121 its reverse (1213122301), we get a palindrome (2245335422).

The spelling of 1032213121 in words is "one billion, thirty-two million, two hundred thirteen thousand, one hundred twenty-one".