2032521021 has 12 divisors (see below), whose sum is σ = 2951077948. Its totient is φ = 1347992064.

The previous prime is 2032521019. The next prime is 2032521053. The reversal of 2032521021 is 1201252302.

It can be written as a sum of positive squares in 2 ways, for example, as 221592996 + 1810928025 = 14886^2 + 42555^2 .

It is not a de Polignac number, because 2032521021 - 2¹ = 2032521019 is a prime.

It is a super-2 number, since 2×2032521021² = 8262283401613764882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2032520985 and 2032521003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2032521091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583330 + ... + 586803.

Almost surely, 2^2032521021 is an apocalyptic number.

It is an amenable number.

2032521021 is a deficient number, since it is larger than the sum of its proper divisors (918556927).

2032521021 is a wasteful number, since it uses less digits than its factorization.

2032521021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170332 (or 1170329 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2032521021 is about 45083.4894501302. The cubic root of 2032521021 is about 1266.7133529037.

Adding to 2032521021 its reverse (1201252302), we get a palindrome (3233773323).

The spelling of 2032521021 in words is "two billion, thirty-two million, five hundred twenty-one thousand, twenty-one".