102101212313305 has 4 divisors (see below), whose sum is σ = 122521454775972. Its totient is φ = 81680969850640.

The previous prime is 102101212313293. The next prime is 102101212313327. The reversal of 102101212313305 is 503313212101201.

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 45363740738121 + 56737471575184 = 6735261^2 + 7532428^2 .

It is not a de Polignac number, because 102101212313305 - 2⁴⁵ = 66916840224473 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 102101212313305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10210121231326 + ... + 10210121231335.

It is an arithmetic number, because the mean of its divisors is an integer number (30630363693993).

Almost surely, 2^{102101212313305} is an apocalyptic number.

It is an amenable number.

102101212313305 is a deficient number, since it is larger than the sum of its proper divisors (20420242462667).

102101212313305 is an equidigital number, since it uses as much as digits as its factorization.

102101212313305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20420242462666.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 102101212313305 its reverse (503313212101201), we get a palindrome (605414424414506).

The spelling of 102101212313305 in words is "one hundred two trillion, one hundred one billion, two hundred twelve million, three hundred thirteen thousand, three hundred five".