31301130020212 has 48 divisors (see below), whose sum is σ = 60396251775552. Its totient is φ = 14102808088320.

The previous prime is 31301130020179. The next prime is 31301130020287. The reversal of 31301130020212 is 21202003110313.

It is a super-3 number, since 3×31301130020212³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31301130020212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78912 + ... + 7912552.

It is an arithmetic number, because the mean of its divisors is an integer number (1258255245324).

Almost surely, 2^{31301130020212} is an apocalyptic number.

It is an amenable number.

31301130020212 is a deficient number, since it is larger than the sum of its proper divisors (29095121755340).

31301130020212 is a wasteful number, since it uses less digits than its factorization.

31301130020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7835488 (or 7835486 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31301130020212 its reverse (21202003110313), we get a palindrome (52503133130525).

The spelling of 31301130020212 in words is "thirty-one trillion, three hundred one billion, one hundred thirty million, twenty thousand, two hundred twelve".