331131111131012 has 24 divisors (see below), whose sum is σ = 580928353972512. Its totient is φ = 165151893513600.

The previous prime is 331131111130997. The next prime is 331131111131089. The reversal of 331131111131012 is 210131111131133.

It is a happy number.

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, 34765598 + ... + 43254005.

It is an arithmetic number, because the mean of its divisors is an integer number (24205348082188).

Almost surely, 2^{331131111131012} is an apocalyptic number.

It is an amenable number.

331131111131012 is a deficient number, since it is larger than the sum of its proper divisors (249797242841500).

331131111131012 is a wasteful number, since it uses less digits than its factorization.

331131111131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78022259 (or 78022257 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

Adding to 331131111131012 its reverse (210131111131133), we get a palindrome (541262222262145).

The spelling of 331131111131012 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, one hundred eleven million, one hundred thirty-one thousand, twelve".