1312303103100 has 216 divisors, whose sum is σ = 4522618533888. Its totient is φ = 315628790400.

The previous prime is 1312303103017. The next prime is 1312303103107. The reversal of 1312303103100 is 13013032131.

It is a happy number.

1312303103100 is a `hidden beast` number, since 1 + 3 + 12 + 30 + 310 + 310 + 0 = 666.

It is a super-2 number, since 2×1312303103100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312303103107) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 735427 + ... + 1779173.

It is an arithmetic number, because the mean of its divisors is an integer number (20938048768).

Almost surely, 2^{1312303103100} is an apocalyptic number.

1312303103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312303103100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2261309266944).

1312303103100 is an abundant number, since it is smaller than the sum of its proper divisors (3210315430788).

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

1312303103100 is a wasteful number, since it uses less digits than its factorization.

1312303103100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043905 (or 1043895 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1312303103100 its reverse (13013032131), we get a palindrome (1325316135231).

It can be divided in two parts, 1312303 and 103100, that added together give a triangular number (1415403 = T₁₆₈₂).

The spelling of 1312303103100 in words is "one trillion, three hundred twelve billion, three hundred three million, one hundred three thousand, one hundred".