33203230121213 has 4 divisors (see below), whose sum is σ = 34348169090940. Its totient is φ = 32058291151488.

The previous prime is 33203230121203. The next prime is 33203230121231. The reversal of 33203230121213 is 31212103230233.

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 9802046395684 + 23401183725529 = 3130822^2 + 4837477^2 .

It is a cyclic number.

It is not a de Polignac number, because 33203230121213 - 2²⁴ = 33203213343997 is a prime.

It is a super-2 number, since 2×33203230121213² (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 (33203230121203) 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, 572469484820 + ... + 572469484877.

It is an arithmetic number, because the mean of its divisors is an integer number (8587042272735).

Almost surely, 2^{33203230121213} is an apocalyptic number.

It is an amenable number.

33203230121213 is a deficient number, since it is larger than the sum of its proper divisors (1144938969727).

33203230121213 is a wasteful number, since it uses less digits than its factorization.

33203230121213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144938969726.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 33203230121213 its reverse (31212103230233), we get a palindrome (64415333351446).

The spelling of 33203230121213 in words is "thirty-three trillion, two hundred three billion, two hundred thirty million, one hundred twenty-one thousand, two hundred thirteen".