312202213032340 has 24 divisors (see below), whose sum is σ = 671615492427432. Its totient is φ = 121835009963520.

The previous prime is 312202213032313. The next prime is 312202213032341. The reversal of 312202213032340 is 43230312202213.

It can be written as a sum of positive squares in 4 ways, for example, as 31408716505104 + 280793496527236 = 5604348^2 + 16756894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312202213032299 and 312202213032308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312202213032341) 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, 190367202249 + ... + 190367203888.

It is an arithmetic number, because the mean of its divisors is an integer number (27983978851143).

Almost surely, 2^{312202213032340} is an apocalyptic number.

It is an amenable number.

312202213032340 is an abundant number, since it is smaller than the sum of its proper divisors (359413279395092).

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

312202213032340 is a wasteful number, since it uses less digits than its factorization.

312202213032340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380734406187 (or 380734406185 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 312202213032340 its reverse (43230312202213), we get a palindrome (355432525234553).

The spelling of 312202213032340 in words is "three hundred twelve trillion, two hundred two billion, two hundred thirteen million, thirty-two thousand, three hundred forty".