3431220221343 has 16 divisors (see below), whose sum is σ = 4842780750720. Its totient is φ = 2157238693344.

The previous prime is 3431220221329. The next prime is 3431220221413.

It is a happy number.

3431220221343 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3431220221343 - 2¹⁴ = 3431220204959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3431220221343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3431220221843) 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, 458592921 + ... + 458600402.

It is an arithmetic number, because the mean of its divisors is an integer number (302673796920).

Almost surely, 2^{3431220221343} is an apocalyptic number.

3431220221343 is a deficient number, since it is larger than the sum of its proper divisors (1411560529377).

3431220221343 is a wasteful number, since it uses less digits than its factorization.

3431220221343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917193398.

The product of its (nonzero) digits is 20736, while the sum is 30.

It can be divided in two parts, 3431220 and 221343, that added together give a palindrome (3652563).

The spelling of 3431220221343 in words is "three trillion, four hundred thirty-one billion, two hundred twenty million, two hundred twenty-one thousand, three hundred forty-three".