33012312340 has 36 divisors (see below), whose sum is σ = 80644365396. Its totient is φ = 11318506752.

The previous prime is 33012312317. The next prime is 33012312373. The reversal of 33012312340 is 4321321033.

It can be written as a sum of positive squares in 2 ways, for example, as 11784405136 + 21227907204 = 108556^2 + 145698^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16842037 + ... + 16843996.

It is an arithmetic number, because the mean of its divisors is an integer number (2240121261).

Almost surely, 2^33012312340 is an apocalyptic number.

It is an amenable number.

33012312340 is an abundant number, since it is smaller than the sum of its proper divisors (47632053056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33012312340 is a wasteful number, since it uses less digits than its factorization.

33012312340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33686056 (or 33686047 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 33012312340 its reverse (4321321033), we get a palindrome (37333633373).

The spelling of 33012312340 in words is "thirty-three billion, twelve million, three hundred twelve thousand, three hundred forty".