1931330543108 has 6 divisors (see below), whose sum is σ = 3379828450446. Its totient is φ = 965665271552.

The previous prime is 1931330543101. The next prime is 1931330543113. The reversal of 1931330543108 is 8013450331391.

It can be written as a sum of positive squares in only one way, i.e., 1641350447104 + 289980096004 = 1281152^2 + 538498^2 .

It is not an unprimeable number, because it can be changed into a prime (1931330543101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 241416317885 + ... + 241416317892.

It is an arithmetic number, because the mean of its divisors is an integer number (563304741741).

Almost surely, 2^{1931330543108} is an apocalyptic number.

It is an amenable number.

1931330543108 is a deficient number, since it is larger than the sum of its proper divisors (1448497907338).

1931330543108 is a wasteful number, since it uses less digits than its factorization.

1931330543108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482832635781 (or 482832635779 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

Adding to 1931330543108 its reverse (8013450331391), we get a palindrome (9944780874499).

The spelling of 1931330543108 in words is "one trillion, nine hundred thirty-one billion, three hundred thirty million, five hundred forty-three thousand, one hundred eight".