312011030100 has 288 divisors, whose sum is σ = 1140932975616. Its totient is φ = 63944985600.

The previous prime is 312011030053. The next prime is 312011030113. The reversal of 312011030100 is 1030110213.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 1593787 + ... + 1778813.

It is an arithmetic number, because the mean of its divisors is an integer number (3961572832).

Almost surely, 2^312011030100 is an apocalyptic number.

312011030100 is a gapful number since it is divisible by the number (30) 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 312011030100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570466487808).

312011030100 is an abundant number, since it is smaller than the sum of its proper divisors (828921945516).

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

312011030100 is a wasteful number, since it uses less digits than its factorization.

312011030100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185135 (or 185128 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 312011030100 its reverse (1030110213), we get a palindrome (313041140313).

The spelling of 312011030100 in words is "three hundred twelve billion, eleven million, thirty thousand, one hundred".