3440131021 has 4 divisors (see below), whose sum is σ = 3520134112. Its totient is φ = 3360127932.

The previous prime is 3440130997. The next prime is 3440131099. The reversal of 3440131021 is 1201310443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1201310443 = 173 ⋅6943991.

It is a cyclic number.

It is not a de Polignac number, because 3440131021 - 2⁹ = 3440130509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3440131021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440131421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40001481 + ... + 40001566.

It is an arithmetic number, because the mean of its divisors is an integer number (880033528).

Almost surely, 2^3440131021 is an apocalyptic number.

It is an amenable number.

3440131021 is a deficient number, since it is larger than the sum of its proper divisors (80003091).

3440131021 is an equidigital number, since it uses as much as digits as its factorization.

3440131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80003090.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3440131021 is about 58652.6301285799. The cubic root of 3440131021 is about 1509.5876278438.

Adding to 3440131021 its reverse (1201310443), we get a palindrome (4641441464).

The spelling of 3440131021 in words is "three billion, four hundred forty million, one hundred thirty-one thousand, twenty-one".