312213112134 has 144 divisors (see below), whose sum is σ = 824168475648. Its totient is φ = 78478092000.

The previous prime is 312213112129. The next prime is 312213112139. The reversal of 312213112134 is 431211312213.

It is an interprime number because it is at equal distance from previous prime (312213112129) and next prime (312213112139).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312213112139) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 961239 + ... + 1244349.

It is an arithmetic number, because the mean of its divisors is an integer number (5723392192).

Almost surely, 2^312213112134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312213112134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412084237824).

312213112134 is an abundant number, since it is smaller than the sum of its proper divisors (511955363514).

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

312213112134 is a wasteful number, since it uses less digits than its factorization.

312213112134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283183 (or 283165 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

Adding to 312213112134 its reverse (431211312213), we get a palindrome (743424424347).

The spelling of 312213112134 in words is "three hundred twelve billion, two hundred thirteen million, one hundred twelve thousand, one hundred thirty-four".