3144020321 has 16 divisors (see below), whose sum is σ = 3405631488. Its totient is φ = 2885284800.

The previous prime is 3144020317. The next prime is 3144020333. The reversal of 3144020321 is 1230204413.

It is a cyclic number.

It is not a de Polignac number, because 3144020321 - 2² = 3144020317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3144020293 and 3144020302.

It is not an unprimeable number, because it can be changed into a prime (3144020821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2891840 + ... + 2892926.

It is an arithmetic number, because the mean of its divisors is an integer number (212851968).

Almost surely, 2^3144020321 is an apocalyptic number.

It is an amenable number.

3144020321 is a deficient number, since it is larger than the sum of its proper divisors (261611167).

3144020321 is a wasteful number, since it uses less digits than its factorization.

3144020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 3144020321 is about 56071.5642817284. The cubic root of 3144020321 is about 1464.9690451512.

Adding to 3144020321 its reverse (1230204413), we get a palindrome (4374224734).

The spelling of 3144020321 in words is "three billion, one hundred forty-four million, twenty thousand, three hundred twenty-one".