3141321021 has 24 divisors (see below), whose sum is σ = 4708136160. Its totient is φ = 2093049072.

The previous prime is 3141321019. The next prime is 3141321049. The reversal of 3141321021 is 1201231413.

It is not a de Polignac number, because 3141321021 - 2¹ = 3141321019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3141320985 and 3141321003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3141321061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 856690 + ... + 860348.

It is an arithmetic number, because the mean of its divisors is an integer number (196172340).

Almost surely, 2^3141321021 is an apocalyptic number.

It is an amenable number.

3141321021 is a deficient number, since it is larger than the sum of its proper divisors (1566815139).

3141321021 is an equidigital number, since it uses as much as digits as its factorization.

3141321021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7207 (or 7195 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 3141321021 is about 56047.4889803281. The cubic root of 3141321021 is about 1464.5496751767.

Adding to 3141321021 its reverse (1201231413), we get a palindrome (4342552434).

The spelling of 3141321021 in words is "three billion, one hundred forty-one million, three hundred twenty-one thousand, twenty-one".