1312101123203 has 16 divisors (see below), whose sum is σ = 1452754978080. Its totient is φ = 1177191138816.

The previous prime is 1312101123199. The next prime is 1312101123227. The reversal of 1312101123203 is 3023211012131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1312101123203 - 2² = 1312101123199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312101123293) 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 15 ways as a sum of consecutive naturals, for example, 984758 + ... + 1895771.

It is an arithmetic number, because the mean of its divisors is an integer number (90797186130).

Almost surely, 2^{1312101123203} is an apocalyptic number.

1312101123203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312101123203 is a deficient number, since it is larger than the sum of its proper divisors (140653854877).

1312101123203 is a wasteful number, since it uses less digits than its factorization.

1312101123203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881526.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1312101123203 its reverse (3023211012131), we get a palindrome (4335312135334).

The spelling of 1312101123203 in words is "one trillion, three hundred twelve billion, one hundred one million, one hundred twenty-three thousand, two hundred three".