33231122013 has 16 divisors (see below), whose sum is σ = 45345776960. Its totient is φ = 21635437824.

The previous prime is 33231121991. The next prime is 33231122017. The reversal of 33231122013 is 31022113233.

It is not a de Polignac number, because 33231122013 - 2¹² = 33231117917 is a prime.

It is a super-2 number, since 2×33231122013² (a number of 22 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 (33231122017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 988245 + ... + 1021317.

It is an arithmetic number, because the mean of its divisors is an integer number (2834111060).

Almost surely, 2^33231122013 is an apocalyptic number.

It is an amenable number.

33231122013 is a deficient number, since it is larger than the sum of its proper divisors (12114654947).

33231122013 is a wasteful number, since it uses less digits than its factorization.

33231122013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40908.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 33231122013 its reverse (31022113233), we get a palindrome (64253235246).

The spelling of 33231122013 in words is "thirty-three billion, two hundred thirty-one million, one hundred twenty-two thousand, thirteen".