331220133211132 has 24 divisors (see below), whose sum is σ = 632330118967680. Its totient is φ = 150554421779760.

The previous prime is 331220133211129. The next prime is 331220133211139. The reversal of 331220133211132 is 231112331022133.

It is a self number, because there is not a number n which added to its sum of digits gives 331220133211132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220133211139) 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, 35730369 + ... + 44035207.

It is an arithmetic number, because the mean of its divisors is an integer number (26347088290320).

Almost surely, 2^{331220133211132} is an apocalyptic number.

It is an amenable number.

331220133211132 is a deficient number, since it is larger than the sum of its proper divisors (301109985756548).

331220133211132 is a wasteful number, since it uses less digits than its factorization.

331220133211132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9211281 (or 9211279 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 331220133211132 its reverse (231112331022133), we get a palindrome (562332464233265).

The spelling of 331220133211132 in words is "three hundred thirty-one trillion, two hundred twenty billion, one hundred thirty-three million, two hundred eleven thousand, one hundred thirty-two".