102100321273 has 2 divisors, whose sum is σ = 102100321274. Its totient is φ = 102100321272.

The previous prime is 102100321243. The next prime is 102100321303. The reversal of 102100321273 is 372123001201.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (102100321243) and next prime (102100321303).

It can be written as a sum of positive squares in only one way, i.e., 75179059344 + 26921261929 = 274188^2 + 164077^2 .

It is a cyclic number.

It is not a de Polignac number, because 102100321273 - 2⁹ = 102100320761 is a prime.

It is not a weakly prime, because it can be changed into another prime (102100321243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050160636 + 51050160637.

It is an arithmetic number, because the mean of its divisors is an integer number (51050160637).

Almost surely, 2^102100321273 is an apocalyptic number.

It is an amenable number.

102100321273 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100321273 is an equidigital number, since it uses as much as digits as its factorization.

102100321273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 102100321273 its reverse (372123001201), we get a palindrome (474223322474).

The spelling of 102100321273 in words is "one hundred two billion, one hundred million, three hundred twenty-one thousand, two hundred seventy-three".