201123241110 has 128 divisors (see below), whose sum is σ = 585242219520. Its totient is φ = 48744115200.

The previous prime is 201123241103. The next prime is 201123241129. The reversal of 201123241110 is 11142321102.

201123241110 is a `hidden beast` number, since 2 + 0 + 11 + 232 + 411 + 10 = 666.

It is a super-2 number, since 2×201123241110² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15678159 + ... + 15690981.

It is an arithmetic number, because the mean of its divisors is an integer number (4572204840).

Almost surely, 2^201123241110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201123241110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292621109760).

201123241110 is an abundant number, since it is smaller than the sum of its proper divisors (384118978410).

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

201123241110 is a wasteful number, since it uses less digits than its factorization.

201123241110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18131 (or 18125 counting only the distinct ones).

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

Adding to 201123241110 its reverse (11142321102), we get a palindrome (212265562212).

The spelling of 201123241110 in words is "two hundred one billion, one hundred twenty-three million, two hundred forty-one thousand, one hundred ten".