312000134101021 has 4 divisors (see below), whose sum is σ = 317288271967200. Its totient is φ = 306711996234844.

The previous prime is 312000134100913. The next prime is 312000134101037. The reversal of 312000134101021 is 120101431000213.

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 not a de Polignac number, because 312000134101021 - 2¹⁷ = 312000133969949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312000134101021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312000134101081) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2644068933001 + ... + 2644068933118.

It is an arithmetic number, because the mean of its divisors is an integer number (79322067991800).

Almost surely, 2^{312000134101021} is an apocalyptic number.

It is an amenable number.

312000134101021 is a deficient number, since it is larger than the sum of its proper divisors (5288137866179).

312000134101021 is an equidigital number, since it uses as much as digits as its factorization.

312000134101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288137866178.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 312000134101021 its reverse (120101431000213), we get a palindrome (432101565101234).

The spelling of 312000134101021 in words is "three hundred twelve trillion, one hundred thirty-four million, one hundred one thousand, twenty-one".