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2231132100012 = 223261975891667
BaseRepresentation
bin100000011101111001110…
…101100001010110101100
321220021221102200002002200
4200131321311201112230
5243023324304200022
64424545024021500
7320123350640034
oct40357165412654
97807842602080
102231132100012
117902439a5562
123004a9761890
131325196580aa
1479db74b28c4
153d084652bac
hex20779d615ac

2231132100012 has 18 divisors (see below), whose sum is σ = 5639806141788. Its totient is φ = 743710699992.

The previous prime is 2231132099947. The next prime is 2231132100047. The reversal of 2231132100012 is 2100012311322.

2231132100012 is a `hidden beast` number, since 22 + 311 + 321 + 0 + 0 + 0 + 12 = 666.

2231132100012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×22311321000123 (a number of 38 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30987945798 + ... + 30987945869.

Almost surely, 22231132100012 is an apocalyptic number.

It is an amenable number.

2231132100012 is an abundant number, since it is smaller than the sum of its proper divisors (3408674041776).

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

2231132100012 is a wasteful number, since it uses less digits than its factorization.

2231132100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61975891677 (or 61975891672 counting only the distinct ones).

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

Adding to 2231132100012 its reverse (2100012311322), we get a palindrome (4331144411334).

The spelling of 2231132100012 in words is "two trillion, two hundred thirty-one billion, one hundred thirty-two million, one hundred thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 61975891667 123951783334 185927675001 247903566668 371855350002 557783025003 743710700004 1115566050006 2231132100012