1312100123226 has 8 divisors (see below), whose sum is σ = 2624200246464. Its totient is φ = 437366707740.

The previous prime is 1312100123203. The next prime is 1312100123227. The reversal of 1312100123226 is 6223210012131.

It is a sphenic number, since it is the product of 3 distinct primes.

1312100123226 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1312100123196 and 1312100123205.

It is not an unprimeable number, because it can be changed into a prime (1312100123227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109341676930 + ... + 109341676941.

It is an arithmetic number, because the mean of its divisors is an integer number (328025030808).

Almost surely, 2^{1312100123226} is an apocalyptic number.

1312100123226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312100123226 is a wasteful number, since it uses less digits than its factorization.

1312100123226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218683353876.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1312100123226 its reverse (6223210012131), we get a palindrome (7535310135357).

The spelling of 1312100123226 in words is "one trillion, three hundred twelve billion, one hundred million, one hundred twenty-three thousand, two hundred twenty-six".