312000401024321 has 4 divisors (see below), whose sum is σ = 312297261540144. Its totient is φ = 311703540508500.

The previous prime is 312000401024293. The next prime is 312000401024387. The reversal of 312000401024321 is 123420104000213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312000401024321 is a prime.

It is a super-2 number, since 2×312000401024321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312000401021321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148430256335 + ... + 148430258436.

It is an arithmetic number, because the mean of its divisors is an integer number (78074315385036).

Almost surely, 2^{312000401024321} is an apocalyptic number.

It is an amenable number.

312000401024321 is a deficient number, since it is larger than the sum of its proper divisors (296860515823).

312000401024321 is a wasteful number, since it uses less digits than its factorization.

312000401024321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296860515822.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 312000401024321 its reverse (123420104000213), we get a palindrome (435420505024534).

The spelling of 312000401024321 in words is "three hundred twelve trillion, four hundred one million, twenty-four thousand, three hundred twenty-one".