312020021032013 has 4 divisors (see below), whose sum is σ = 356594309750880. Its totient is φ = 267445732313148.

The previous prime is 312020021032009. The next prime is 312020021032021. The reversal of 312020021032013 is 310230120020213.

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 312020021032013 - 2² = 312020021032009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312020021032043) 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, 22287144359423 + ... + 22287144359436.

It is an arithmetic number, because the mean of its divisors is an integer number (89148577437720).

Almost surely, 2^{312020021032013} is an apocalyptic number.

It is an amenable number.

312020021032013 is a deficient number, since it is larger than the sum of its proper divisors (44574288718867).

312020021032013 is an equidigital number, since it uses as much as digits as its factorization.

312020021032013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44574288718866.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312020021032013 its reverse (310230120020213), we get a palindrome (622250141052226).

The spelling of 312020021032013 in words is "three hundred twelve trillion, twenty billion, twenty-one million, thirty-two thousand, thirteen".