34827211021 has 4 divisors (see below), whose sum is σ = 34827741532. Its totient is φ = 34826680512.

The previous prime is 34827210967. The next prime is 34827211031. The reversal of 34827211021 is 12011272843.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12011272843 = 67 ⋅179272729.

It can be written as a sum of positive squares in 2 ways, for example, as 14410802025 + 20416408996 = 120045^2 + 142886^2 .

It is a cyclic number.

It is not a de Polignac number, because 34827211021 - 2¹¹ = 34827208973 is a prime.

It is the 186621-st Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34827211031) by changing a digit.

It is a nontrivial repunit in base 186620.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150126 + ... + 303631.

It is an arithmetic number, because the mean of its divisors is an integer number (8706935383).

Almost surely, 2^34827211021 is an apocalyptic number.

It is an amenable number.

34827211021 is a deficient number, since it is larger than the sum of its proper divisors (530511).

34827211021 is an equidigital number, since it uses as much as digits as its factorization.

34827211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530510.

The product of its (nonzero) digits is 5376, while the sum is 31.

Adding to 34827211021 its reverse (12011272843), we get a palindrome (46838483864).

The spelling of 34827211021 in words is "thirty-four billion, eight hundred twenty-seven million, two hundred eleven thousand, twenty-one".