11312001220230 has 96 divisors (see below), whose sum is σ = 30691471022784. Its totient is φ = 2885237127168.

The previous prime is 11312001220151. The next prime is 11312001220231. The reversal of 11312001220230 is 3202210021311.

11312001220230 is a `hidden beast` number, since 1 + 1 + 312 + 0 + 0 + 122 + 0 + 230 = 666.

11312001220230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11312001220230² (a number of 27 digits) contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312001220231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45368062 + ... + 45616718.

It is an arithmetic number, because the mean of its divisors is an integer number (319702823154).

Almost surely, 2^{11312001220230} is an apocalyptic number.

11312001220230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11312001220230 is an abundant number, since it is smaller than the sum of its proper divisors (19379469802554).

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

11312001220230 is a wasteful number, since it uses less digits than its factorization.

11312001220230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270670 (or 270667 counting only the distinct ones).

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

Adding to 11312001220230 its reverse (3202210021311), we get a palindrome (14514211241541).

The spelling of 11312001220230 in words is "eleven trillion, three hundred twelve billion, one million, two hundred twenty thousand, two hundred thirty".