3025431021 has 4 divisors (see below), whose sum is σ = 4033908032. Its totient is φ = 2016954012.

The previous prime is 3025431007. The next prime is 3025431077. The reversal of 3025431021 is 1201345203.

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.

It is not a de Polignac number, because 3025431021 - 2⁷ = 3025430893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3025431121) 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, 504238501 + ... + 504238506.

It is an arithmetic number, because the mean of its divisors is an integer number (1008477008).

Almost surely, 2^3025431021 is an apocalyptic number.

It is an amenable number.

3025431021 is a deficient number, since it is larger than the sum of its proper divisors (1008477011).

3025431021 is a wasteful number, since it uses less digits than its factorization.

3025431021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008477010.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3025431021 is about 55003.9182331586. The cubic root of 3025431021 is about 1446.3134286305.

Adding to 3025431021 its reverse (1201345203), we get a palindrome (4226776224).

The spelling of 3025431021 in words is "three billion, twenty-five million, four hundred thirty-one thousand, twenty-one".