320000100009973 has 2 divisors, whose sum is σ = 320000100009974. Its totient is φ = 320000100009972.

The previous prime is 320000100009857. The next prime is 320000100010001. The reversal of 320000100009973 is 379900001000023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285144324571089 + 34855775438884 = 16886217^2 + 5903878^2 .

It is a cyclic number.

It is not a de Polignac number, because 320000100009973 - 2³³ = 319991510075381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320000100069973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160000050004986 + 160000050004987.

It is an arithmetic number, because the mean of its divisors is an integer number (160000050004987).

Almost surely, 2^{320000100009973} is an apocalyptic number.

It is an amenable number.

320000100009973 is a deficient number, since it is larger than the sum of its proper divisors (1).

320000100009973 is an equidigital number, since it uses as much as digits as its factorization.

320000100009973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 34.

Adding to 320000100009973 its reverse (379900001000023), we get a palindrome (699900101009996).

The spelling of 320000100009973 in words is "three hundred twenty trillion, one hundred million, nine thousand, nine hundred seventy-three".