31234344343212 has 96 divisors (see below), whose sum is σ = 76192191129600. Its totient is φ = 9940021926912.

The previous prime is 31234344343199. The next prime is 31234344343253. The reversal of 31234344343212 is 21234344343213.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314530464 + ... + 314629752.

It is an arithmetic number, because the mean of its divisors is an integer number (793668657600).

Almost surely, 2^{31234344343212} is an apocalyptic number.

It is an amenable number.

31234344343212 is an abundant number, since it is smaller than the sum of its proper divisors (44957846786388).

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

31234344343212 is a wasteful number, since it uses less digits than its factorization.

31234344343212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101455 (or 101453 counting only the distinct ones).

The product of its digits is 497664, while the sum is 39.

Adding to 31234344343212 its reverse (21234344343213), we get a palindrome (52468688686425).

Subtracting from 31234344343212 its reverse (21234344343213), we obtain a palindrome (9999999999999).

The spelling of 31234344343212 in words is "thirty-one trillion, two hundred thirty-four billion, three hundred forty-four million, three hundred forty-three thousand, two hundred twelve".