33123013012 has 12 divisors (see below), whose sum is σ = 57969536436. Its totient is φ = 16560288320.

The previous prime is 33123012953. The next prime is 33123013013. The reversal of 33123013012 is 21031032133.

It can be written as a sum of positive squares in 2 ways, for example, as 6916583556 + 26206429456 = 83166^2 + 161884^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33123013013) 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, 241939 + ... + 353242.

It is an arithmetic number, because the mean of its divisors is an integer number (4830794703).

Almost surely, 2^33123013012 is an apocalyptic number.

It is an amenable number.

33123013012 is a deficient number, since it is larger than the sum of its proper divisors (24846523424).

33123013012 is a wasteful number, since it uses less digits than its factorization.

33123013012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609098 (or 609096 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 33123013012 its reverse (21031032133), we get a palindrome (54154045145).

The spelling of 33123013012 in words is "thirty-three billion, one hundred twenty-three million, thirteen thousand, twelve".