31210302130212 has 24 divisors (see below), whose sum is σ = 72948099714336. Its totient is φ = 10385710984768.

The previous prime is 31210302130211. The next prime is 31210302130283. The reversal of 31210302130212 is 21203120301213.

It is not an unprimeable number, because it can be changed into a prime (31210302130211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215374993 + ... + 2215389080.

It is an arithmetic number, because the mean of its divisors is an integer number (3039504154764).

Almost surely, 2^{31210302130212} is an apocalyptic number.

It is an amenable number.

31210302130212 is an abundant number, since it is smaller than the sum of its proper divisors (41737797584124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31210302130212 is a wasteful number, since it uses less digits than its factorization.

31210302130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430764667 (or 4430764665 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31210302130212 its reverse (21203120301213), we get a palindrome (52413422431425).

The spelling of 31210302130212 in words is "thirty-one trillion, two hundred ten billion, three hundred two million, one hundred thirty thousand, two hundred twelve".