33120130312 has 32 divisors (see below), whose sum is σ = 62584951320. Its totient is φ = 16430932480.

The previous prime is 33120130297. The next prime is 33120130343. The reversal of 33120130312 is 21303102133.

It can be written as a sum of positive squares in 4 ways, for example, as 16242482916 + 16877647396 = 127446^2 + 129914^2 .

It is a super-2 number, since 2×33120130312² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33120130312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2576862 + ... + 2589682.

Almost surely, 2^33120130312 is an apocalyptic number.

It is an amenable number.

33120130312 is a deficient number, since it is larger than the sum of its proper divisors (29464821008).

33120130312 is a wasteful number, since it uses less digits than its factorization.

33120130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15321 (or 15317 counting only the distinct ones).

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

Adding to 33120130312 its reverse (21303102133), we get a palindrome (54423232445).

The spelling of 33120130312 in words is "thirty-three billion, one hundred twenty million, one hundred thirty thousand, three hundred twelve".