31343203210212 has 60 divisors (see below), whose sum is σ = 84151846755900. Its totient is φ = 10165363199424.

The previous prime is 31343203210201. The next prime is 31343203210223. The reversal of 31343203210212 is 21201230234313.

31343203210212 is a `hidden beast` number, since 3 + 1 + 3 + 4 + 320 + 321 + 0 + 2 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (31343203210201) and next prime (31343203210223).

It can be written as a sum of positive squares in 2 ways, for example, as 26908952763456 + 4434250446756 = 5187384^2 + 2105766^2 .

It is a super-2 number, since 2×31343203210212² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1307262087 + ... + 1307286062.

It is an arithmetic number, because the mean of its divisors is an integer number (1402530779265).

Almost surely, 2^{31343203210212} is an apocalyptic number.

It is an amenable number.

31343203210212 is an abundant number, since it is smaller than the sum of its proper divisors (52808643545688).

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

31343203210212 is a wasteful number, since it uses less digits than its factorization.

31343203210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614548202 (or 2614548191 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31343203210212 its reverse (21201230234313), we get a palindrome (52544433444525).

The spelling of 31343203210212 in words is "thirty-one trillion, three hundred forty-three billion, two hundred three million, two hundred ten thousand, two hundred twelve".