320311101245 has 16 divisors (see below), whose sum is σ = 407038300848. Its totient is φ = 241142952960.

The previous prime is 320311101233. The next prime is 320311101259. The reversal of 320311101245 is 542101113023.

It can be written as a sum of positive squares in 8 ways, for example, as 58014503044 + 262296598201 = 240862^2 + 512149^2 .

It is not a de Polignac number, because 320311101245 - 2⁶ = 320311101181 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 320311101245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391127 + ... + 890843.

It is an arithmetic number, because the mean of its divisors is an integer number (25439893803).

Almost surely, 2^320311101245 is an apocalyptic number.

It is an amenable number.

320311101245 is a deficient number, since it is larger than the sum of its proper divisors (86727199603).

320311101245 is a wasteful number, since it uses less digits than its factorization.

320311101245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507280.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 320311101245 its reverse (542101113023), we get a palindrome (862412214268).

The spelling of 320311101245 in words is "three hundred twenty billion, three hundred eleven million, one hundred one thousand, two hundred forty-five".