33231231311012 has 24 divisors (see below), whose sum is σ = 66501581294400. Its totient is φ = 14233573703520.

The previous prime is 33231231311009. The next prime is 33231231311017. The reversal of 33231231311012 is 21011313213233.

It is a super-2 number, since 2×33231231311012² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33231231311017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349225439 + ... + 349320582.

It is an arithmetic number, because the mean of its divisors is an integer number (2770899220600).

Almost surely, 2^{33231231311012} is an apocalyptic number.

It is an amenable number.

33231231311012 is an abundant number, since it is smaller than the sum of its proper divisors (33270349983388).

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

33231231311012 is a wasteful number, since it uses less digits than its factorization.

33231231311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698547731 (or 698547729 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 33231231311012 its reverse (21011313213233), we get a palindrome (54242544524245).

The spelling of 33231231311012 in words is "thirty-three trillion, two hundred thirty-one billion, two hundred thirty-one million, three hundred eleven thousand, twelve".