1223102313205 has 16 divisors (see below), whose sum is σ = 1475630014320. Its totient is φ = 973212438528.

The previous prime is 1223102313161. The next prime is 1223102313239. The reversal of 1223102313205 is 5023132013221.

It can be written as a sum of positive squares in 8 ways, for example, as 252589671889 + 970512641316 = 502583^2 + 985146^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223102313205 - 2¹¹ = 1223102311157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223102313205.

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, 4671511 + ... + 4926379.

It is an arithmetic number, because the mean of its divisors is an integer number (92226875895).

Almost surely, 2^{1223102313205} is an apocalyptic number.

It is an amenable number.

1223102313205 is a deficient number, since it is larger than the sum of its proper divisors (252527701115).

1223102313205 is a wasteful number, since it uses less digits than its factorization.

1223102313205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260040.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 1223102313205 its reverse (5023132013221), we get a palindrome (6246234326426).

The spelling of 1223102313205 in words is "one trillion, two hundred twenty-three billion, one hundred two million, three hundred thirteen thousand, two hundred five".