313101231212 has 48 divisors (see below), whose sum is σ = 683227829760. Its totient is φ = 121970016000.

The previous prime is 313101231193. The next prime is 313101231241. The reversal of 313101231212 is 212132101313.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2194964 + ... + 2333252.

It is an arithmetic number, because the mean of its divisors is an integer number (14233913120).

Almost surely, 2^313101231212 is an apocalyptic number.

It is an amenable number.

313101231212 is an abundant number, since it is smaller than the sum of its proper divisors (370126598548).

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

313101231212 is a wasteful number, since it uses less digits than its factorization.

313101231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145662 (or 145660 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 313101231212 its reverse (212132101313), we get a palindrome (525233332525).

The spelling of 313101231212 in words is "three hundred thirteen billion, one hundred one million, two hundred thirty-one thousand, two hundred twelve".