34431321211 has 16 divisors (see below), whose sum is σ = 41133629440. Its totient is φ = 28199003040.

The previous prime is 34431321209. The next prime is 34431321217. The reversal of 34431321211 is 11212313443.

It is a cyclic number.

It is not a de Polignac number, because 34431321211 - 2¹ = 34431321209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34431321217) 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, 987096 + ... + 1021381.

It is an arithmetic number, because the mean of its divisors is an integer number (2570851840).

Almost surely, 2^34431321211 is an apocalyptic number.

34431321211 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

34431321211 is a deficient number, since it is larger than the sum of its proper divisors (6702308229).

34431321211 is a wasteful number, since it uses less digits than its factorization.

34431321211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008594.

The product of its digits is 1728, while the sum is 25.

Adding to 34431321211 its reverse (11212313443), we get a palindrome (45643634654).

The spelling of 34431321211 in words is "thirty-four billion, four hundred thirty-one million, three hundred twenty-one thousand, two hundred eleven".