31202103223012 has 12 divisors (see below), whose sum is σ = 54603752205996. Its totient is φ = 15601031164160.

The previous prime is 31202103223009. The next prime is 31202103223051. The reversal of 31202103223012 is 21032230120213.

It can be written as a sum of positive squares in 2 ways, for example, as 13210796931556 + 17991306291456 = 3634666^2 + 4241616^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374853 + ... + 8018380.

It is an arithmetic number, because the mean of its divisors is an integer number (4550312683833).

Almost surely, 2^{31202103223012} is an apocalyptic number.

It is an amenable number.

31202103223012 is a deficient number, since it is larger than the sum of its proper divisors (23401648982984).

31202103223012 is a wasteful number, since it uses less digits than its factorization.

31202103223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10223678 (or 10223676 counting only the distinct ones).

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

Adding to 31202103223012 its reverse (21032230120213), we get a palindrome (52234333343225).

The spelling of 31202103223012 in words is "thirty-one trillion, two hundred two billion, one hundred three million, two hundred twenty-three thousand, twelve".