312200105040445 has 4 divisors (see below), whose sum is σ = 374640126048540. Its totient is φ = 249760084032352.

The previous prime is 312200105040403. The next prime is 312200105040463. The reversal of 312200105040445 is 544040501002213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222974001394596 + 89226103645849 = 14932314^2 + 9445957^2 .

It is a cyclic number.

It is not a de Polignac number, because 312200105040445 - 2¹⁷ = 312200104909373 is a prime.

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, 31220010504040 + ... + 31220010504049.

It is an arithmetic number, because the mean of its divisors is an integer number (93660031512135).

Almost surely, 2^{312200105040445} is an apocalyptic number.

It is an amenable number.

312200105040445 is a deficient number, since it is larger than the sum of its proper divisors (62440021008095).

312200105040445 is an equidigital number, since it uses as much as digits as its factorization.

312200105040445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62440021008094.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 312200105040445 its reverse (544040501002213), we get a palindrome (856240606042658).

The spelling of 312200105040445 in words is "three hundred twelve trillion, two hundred billion, one hundred five million, forty thousand, four hundred forty-five".