33012112131 has 12 divisors (see below), whose sum is σ = 47748696840. Its totient is φ = 21978289440.

The previous prime is 33012112121. The next prime is 33012112151. The reversal of 33012112131 is 13121121033.

33012112131 is a `hidden beast` number, since 330 + 121 + 1 + 213 + 1 = 666.

It is not a de Polignac number, because 33012112131 - 2¹¹ = 33012110083 is a prime.

It is a super-2 number, since 2×33012112131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33012112121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2475090 + ... + 2488391.

It is an arithmetic number, because the mean of its divisors is an integer number (3979058070).

Almost surely, 2^33012112131 is an apocalyptic number.

33012112131 is a deficient number, since it is larger than the sum of its proper divisors (14736584709).

33012112131 is a wasteful number, since it uses less digits than its factorization.

33012112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964226 (or 4964223 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 33012112131 its reverse (13121121033), we get a palindrome (46133233164).

The spelling of 33012112131 in words is "thirty-three billion, twelve million, one hundred twelve thousand, one hundred thirty-one".