1211310300312 has 160 divisors (see below), whose sum is σ = 3967649241600. Its totient is φ = 338040029376.

The previous prime is 1211310300311. The next prime is 1211310300323. The reversal of 1211310300312 is 2130030131121.

1211310300312 is a `hidden beast` number, since 1 + 2 + 11 + 310 + 30 + 0 + 312 = 666.

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 (1211310300311) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2910112 + ... + 3300207.

It is an arithmetic number, because the mean of its divisors is an integer number (24797807760).

Almost surely, 2^{1211310300312} is an apocalyptic number.

1211310300312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211310300312 is an abundant number, since it is smaller than the sum of its proper divisors (2756338941288).

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

1211310300312 is a wasteful number, since it uses less digits than its factorization.

1211310300312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210387 (or 6210374 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1211310300312 its reverse (2130030131121), we get a palindrome (3341340431433).

The spelling of 1211310300312 in words is "one trillion, two hundred eleven billion, three hundred ten million, three hundred thousand, three hundred twelve".