201123101412 has 84 divisors (see below), whose sum is σ = 532548926140. Its totient is φ = 66425873472.

The previous prime is 201123101383. The next prime is 201123101497. The reversal of 201123101412 is 214101321102.

201123101412 is a `hidden beast` number, since 20 + 1 + 1 + 231 + 0 + 1 + 412 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 80035804836 + 121087296576 = 282906^2 + 347976^2 .

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 27 ways as a sum of consecutive naturals, for example, 1458 + ... + 634230.

Almost surely, 2^201123101412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201123101412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266274463070).

201123101412 is an abundant number, since it is smaller than the sum of its proper divisors (331425824728).

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

201123101412 is a wasteful number, since it uses less digits than its factorization.

201123101412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632904 (or 632887 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 201123101412 its reverse (214101321102), we get a palindrome (415224422514).

The spelling of 201123101412 in words is "two hundred one billion, one hundred twenty-three million, one hundred one thousand, four hundred twelve".