3131223200212 has 6 divisors (see below), whose sum is σ = 5479640600378. Its totient is φ = 1565611600104.

The previous prime is 3131223200177. The next prime is 3131223200227. The reversal of 3131223200212 is 2120023221313.

It can be written as a sum of positive squares in only one way, i.e., 2401247763216 + 729975436996 = 1549596^2 + 854386^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391402900023 + ... + 391402900030.

Almost surely, 2^{3131223200212} is an apocalyptic number.

It is an amenable number.

3131223200212 is a deficient number, since it is larger than the sum of its proper divisors (2348417400166).

3131223200212 is a wasteful number, since it uses less digits than its factorization.

3131223200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782805800057 (or 782805800055 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 3131223200212 its reverse (2120023221313), we get a palindrome (5251246421525).

The spelling of 3131223200212 in words is "three trillion, one hundred thirty-one billion, two hundred twenty-three million, two hundred thousand, two hundred twelve".