320712642101 has 2 divisors, whose sum is σ = 320712642102. Its totient is φ = 320712642100.

The previous prime is 320712642097. The next prime is 320712642113. The reversal of 320712642101 is 101246217023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315872100625 + 4840541476 = 562025^2 + 69574^2 .

It is a cyclic number.

It is not a de Polignac number, because 320712642101 - 2² = 320712642097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320712692101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160356321050 + 160356321051.

It is an arithmetic number, because the mean of its divisors is an integer number (160356321051).

Almost surely, 2^320712642101 is an apocalyptic number.

It is an amenable number.

320712642101 is a deficient number, since it is larger than the sum of its proper divisors (1).

320712642101 is an equidigital number, since it uses as much as digits as its factorization.

320712642101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 320712642101 its reverse (101246217023), we get a palindrome (421958859124).

The spelling of 320712642101 in words is "three hundred twenty billion, seven hundred twelve million, six hundred forty-two thousand, one hundred one".