33203223103213 has 4 divisors (see below), whose sum is σ = 34348161830940. Its totient is φ = 32058284375488.

The previous prime is 33203223103199. The next prime is 33203223103367. The reversal of 33203223103213 is 31230132230233.

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 7260723652329 + 25942499450884 = 2694573^2 + 5093378^2 .

It is a cyclic number.

It is not a de Polignac number, because 33203223103213 - 2⁹ = 33203223102701 is a prime.

It is a super-2 number, since 2×33203223103213² (a number of 28 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 (33203223103613) 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, 572469363820 + ... + 572469363877.

It is an arithmetic number, because the mean of its divisors is an integer number (8587040457735).

Almost surely, 2^{33203223103213} is an apocalyptic number.

It is an amenable number.

33203223103213 is a deficient number, since it is larger than the sum of its proper divisors (1144938727727).

33203223103213 is a wasteful number, since it uses less digits than its factorization.

33203223103213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144938727726.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 33203223103213 its reverse (31230132230233), we get a palindrome (64433355333446).

The spelling of 33203223103213 in words is "thirty-three trillion, two hundred three billion, two hundred twenty-three million, one hundred three thousand, two hundred thirteen".