312000200221340 has 48 divisors (see below), whose sum is σ = 702165433015872. Its totient is φ = 116147665598976.

The previous prime is 312000200221309. The next prime is 312000200221361. The reversal of 312000200221340 is 43122002000213.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9165676289 + ... + 9165710328.

It is an arithmetic number, because the mean of its divisors is an integer number (14628446521164).

Almost surely, 2^{312000200221340} is an apocalyptic number.

It is an amenable number.

312000200221340 is an abundant number, since it is smaller than the sum of its proper divisors (390165232794532).

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

312000200221340 is a wasteful number, since it uses less digits than its factorization.

312000200221340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18331386686 (or 18331386684 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 312000200221340 its reverse (43122002000213), we get a palindrome (355122202221553).

The spelling of 312000200221340 in words is "three hundred twelve trillion, two hundred million, two hundred twenty-one thousand, three hundred forty".