312545102405 has 8 divisors (see below), whose sum is σ = 375057128952. Its totient is φ = 250034077888.

The previous prime is 312545102393. The next prime is 312545102423. The reversal of 312545102405 is 504201545213.

It can be written as a sum of positive squares in 4 ways, for example, as 107702884 + 312437399521 = 10378^2 + 558961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312545102405 - 2⁶ = 312545102341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1041407 + ... + 1307523.

It is an arithmetic number, because the mean of its divisors is an integer number (46882141119).

Almost surely, 2^312545102405 is an apocalyptic number.

It is an amenable number.

312545102405 is a deficient number, since it is larger than the sum of its proper divisors (62512026547).

312545102405 is a wasteful number, since it uses less digits than its factorization.

312545102405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501015.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 312545102405 its reverse (504201545213), we get a palindrome (816746647618).

The spelling of 312545102405 in words is "three hundred twelve billion, five hundred forty-five million, one hundred two thousand, four hundred five".