34531211321 has 4 divisors (see below), whose sum is σ = 34531734144. Its totient is φ = 34530688500.

The previous prime is 34531211311. The next prime is 34531211327. The reversal of 34531211321 is 12311213543.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12311213543 = 743 ⋅16569601.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34531211321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34531211327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145085 + ... + 300186.

It is an arithmetic number, because the mean of its divisors is an integer number (8632933536).

Almost surely, 2^34531211321 is an apocalyptic number.

It is an amenable number.

34531211321 is a deficient number, since it is larger than the sum of its proper divisors (522823).

34531211321 is an equidigital number, since it uses as much as digits as its factorization.

34531211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522822.

The product of its digits is 2160, while the sum is 26.

Adding to 34531211321 its reverse (12311213543), we get a palindrome (46842424864).

The spelling of 34531211321 in words is "thirty-four billion, five hundred thirty-one million, two hundred eleven thousand, three hundred twenty-one".