33213044413 has 4 divisors (see below), whose sum is σ = 34110694300. Its totient is φ = 32315394528.

The previous prime is 33213044351. The next prime is 33213044471. The reversal of 33213044413 is 31444031233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13511272644 + 19701771769 = 116238^2 + 140363^2 .

It is a cyclic number.

It is not a de Polignac number, because 33213044413 - 2¹⁷ = 33212913341 is a prime.

It is a super-2 number, since 2×33213044413² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33213045413) 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, 448824888 + ... + 448824961.

It is an arithmetic number, because the mean of its divisors is an integer number (8527673575).

Almost surely, 2^33213044413 is an apocalyptic number.

It is an amenable number.

33213044413 is a deficient number, since it is larger than the sum of its proper divisors (897649887).

33213044413 is an equidigital number, since it uses as much as digits as its factorization.

33213044413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897649886.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 33213044413 its reverse (31444031233), we get a palindrome (64657075646).

The spelling of 33213044413 in words is "thirty-three billion, two hundred thirteen million, forty-four thousand, four hundred thirteen".