312000400300321 has 16 divisors (see below), whose sum is σ = 317175604694208. Its totient is φ = 306827152632000.

The previous prime is 312000400300319. The next prime is 312000400300331. The reversal of 312000400300321 is 123003004000213.

It is a cyclic number.

It is not a de Polignac number, because 312000400300321 - 2¹ = 312000400300319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312000400300331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9539238250 + ... + 9539270956.

It is an arithmetic number, because the mean of its divisors is an integer number (19823475293388).

Almost surely, 2^{312000400300321} is an apocalyptic number.

It is an amenable number.

312000400300321 is a deficient number, since it is larger than the sum of its proper divisors (5175204393887).

312000400300321 is a wasteful number, since it uses less digits than its factorization.

312000400300321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57792.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 312000400300321 its reverse (123003004000213), we get a palindrome (435003404300534).

The spelling of 312000400300321 in words is "three hundred twelve trillion, four hundred million, three hundred thousand, three hundred twenty-one".