1312211220300 has 108 divisors (see below), whose sum is σ = 4153776755856. Its totient is φ = 346458384000.

The previous prime is 1312211220277. The next prime is 1312211220317. The reversal of 1312211220300 is 30221122131.

1312211220300 is a `hidden beast` number, since 1 + 312 + 21 + 12 + 20 + 300 = 666.

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

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 7126984 + ... + 7308783.

Almost surely, 2^{1312211220300} is an apocalyptic number.

1312211220300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312211220300 is an abundant number, since it is smaller than the sum of its proper divisors (2841565535556).

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

1312211220300 is a wasteful number, since it uses less digits than its factorization.

1312211220300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14435888 (or 14435878 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1312211220300 its reverse (30221122131), we get a palindrome (1342432342431).

The spelling of 1312211220300 in words is "one trillion, three hundred twelve billion, two hundred eleven million, two hundred twenty thousand, three hundred".