3241001021 has 4 divisors (see below), whose sum is σ = 3241195452. Its totient is φ = 3240806592.

The previous prime is 3241000999. The next prime is 3241001063. The reversal of 3241001021 is 1201001423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1201001423 = 71 ⋅16915513.

It can be written as a sum of positive squares in 2 ways, for example, as 1155252121 + 2085748900 = 33989^2 + 45670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3241001021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3241000987 and 3241001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3241001321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69596 + ... + 106421.

It is an arithmetic number, because the mean of its divisors is an integer number (810298863).

Almost surely, 2^3241001021 is an apocalyptic number.

It is an amenable number.

3241001021 is a deficient number, since it is larger than the sum of its proper divisors (194431).

3241001021 is a wasteful number, since it uses less digits than its factorization.

3241001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194430.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 3241001021 is about 56929.7902771475. The cubic root of 3241001021 is about 1479.8796196524.

Adding to 3241001021 its reverse (1201001423), we get a palindrome (4442002444).

The spelling of 3241001021 in words is "three billion, two hundred forty-one million, one thousand, twenty-one".