201120213102123 has 8 divisors (see below), whose sum is σ = 306468896155648. Its totient is φ = 114925836058344.

The previous prime is 201120213102101. The next prime is 201120213102187. The reversal of 201120213102123 is 321201312021102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-201120213102123 is a prime.

It is a super-3 number, since 3×201120213102123³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 9577153004863 = 201120213102123 / (2 + 0 + 1 + 1 + 2 + 0 + 2 + 1 + 3 + 1 + 0 + 2 + 1 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201120213102123.

It is not an unprimeable number, because it can be changed into a prime (201120213102923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4788576502411 + ... + 4788576502452.

It is an arithmetic number, because the mean of its divisors is an integer number (38308612019456).

Almost surely, 2^{201120213102123} is an apocalyptic number.

201120213102123 is a deficient number, since it is larger than the sum of its proper divisors (105348683053525).

201120213102123 is an equidigital number, since it uses as much as digits as its factorization.

201120213102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9577153004873.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 201120213102123 its reverse (321201312021102), we get a palindrome (522321525123225).

The spelling of 201120213102123 in words is "two hundred one trillion, one hundred twenty billion, two hundred thirteen million, one hundred two thousand, one hundred twenty-three".