3231000021213 has 12 divisors (see below), whose sum is σ = 4681722432348. Its totient is φ = 2147205059520.

The previous prime is 3231000021143. The next prime is 3231000021253. The reversal of 3231000021213 is 3121200001323.

It can be written as a sum of positive squares in 2 ways, for example, as 165793923684 + 3065206097529 = 407178^2 + 1750773^2 .

It is not a de Polignac number, because 3231000021213 - 2¹² = 3231000017117 is a prime.

It is a super-2 number, since 2×3231000021213² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3231000021253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566243208 + ... + 566248913.

It is an arithmetic number, because the mean of its divisors is an integer number (390143536029).

Almost surely, 2^{3231000021213} is an apocalyptic number.

It is an amenable number.

3231000021213 is a deficient number, since it is larger than the sum of its proper divisors (1450722411135).

3231000021213 is a wasteful number, since it uses less digits than its factorization.

3231000021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132492444 (or 1132492441 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 3231000021213 its reverse (3121200001323), we get a palindrome (6352200022536).

The spelling of 3231000021213 in words is "three trillion, two hundred thirty-one billion, twenty-one thousand, two hundred thirteen".