201011331222123 has 8 divisors (see below), whose sum is σ = 275258759871888. Its totient is φ = 130385728360224.

The previous prime is 201011331222113. The next prime is 201011331222139. The reversal of 201011331222123 is 321222133110102.

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

It is not a de Polignac number, because 201011331222123 - 2⁴⁵ = 165826959133291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201011331222093 and 201011331222102.

It is not an unprimeable number, because it can be changed into a prime (201011331222103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905456446836 + ... + 905456447057.

It is an arithmetic number, because the mean of its divisors is an integer number (34407344983986).

Almost surely, 2^{201011331222123} is an apocalyptic number.

201011331222123 is a deficient number, since it is larger than the sum of its proper divisors (74247428649765).

201011331222123 is a wasteful number, since it uses less digits than its factorization.

201011331222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810912893933.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 201011331222123 its reverse (321222133110102), we get a palindrome (522233464332225).

The spelling of 201011331222123 in words is "two hundred one trillion, eleven billion, three hundred thirty-one million, two hundred twenty-two thousand, one hundred twenty-three".