312204103140340 has 12 divisors (see below), whose sum is σ = 655628616594756. Its totient is φ = 124881641256128.

The previous prime is 312204103140317. The next prime is 312204103140353. The reversal of 312204103140340 is 43041301402213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 222328318419684 + 89875784720656 = 14910678^2 + 9480284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312204103140299 and 312204103140308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7805102578489 + ... + 7805102578528.

It is an arithmetic number, because the mean of its divisors is an integer number (54635718049563).

Almost surely, 2^{312204103140340} is an apocalyptic number.

It is an amenable number.

312204103140340 is an abundant number, since it is smaller than the sum of its proper divisors (343424513454416).

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

312204103140340 is a wasteful number, since it uses less digits than its factorization.

312204103140340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15610205157026 (or 15610205157024 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 312204103140340 its reverse (43041301402213), we get a palindrome (355245404542553).

The spelling of 312204103140340 in words is "three hundred twelve trillion, two hundred four billion, one hundred three million, one hundred forty thousand, three hundred forty".