311302320201001 has 4 divisors (see below), whose sum is σ = 312226065958612. Its totient is φ = 310378574443392.

The previous prime is 311302320200933. The next prime is 311302320201079. The reversal of 311302320201001 is 100102023203113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63254026497600 + 248048293703401 = 7953240^2 + 15749549^2 .

It is a cyclic number.

It is not a de Polignac number, because 311302320201001 - 2³¹ = 311300172717353 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 311302320201001.

It is not an unprimeable number, because it can be changed into a prime (311302320271001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461872878300 + ... + 461872878973.

It is an arithmetic number, because the mean of its divisors is an integer number (78056516489653).

Almost surely, 2^{311302320201001} is an apocalyptic number.

It is an amenable number.

311302320201001 is a deficient number, since it is larger than the sum of its proper divisors (923745757611).

311302320201001 is an equidigital number, since it uses as much as digits as its factorization.

311302320201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923745757610.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 311302320201001 its reverse (100102023203113), we get a palindrome (411404343404114).

The spelling of 311302320201001 in words is "three hundred eleven trillion, three hundred two billion, three hundred twenty million, two hundred one thousand, one".