201122321123 has 8 divisors (see below), whose sum is σ = 201681586176. Its totient is φ = 200563344000.

The previous prime is 201122321111. The next prime is 201122321143. The reversal of 201122321123 is 321123221102.

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

It is a cyclic number.

It is not a de Polignac number, because 201122321123 - 2³⁰ = 200048579299 is a prime.

It is a super-2 number, since 2×201122321123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201122321095 and 201122321104.

It is not an unprimeable number, because it can be changed into a prime (201122321143) 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, 1366793 + ... + 1506773.

It is an arithmetic number, because the mean of its divisors is an integer number (25210198272).

Almost surely, 2^201122321123 is an apocalyptic number.

201122321123 is a deficient number, since it is larger than the sum of its proper divisors (559265053).

201122321123 is a wasteful number, since it uses less digits than its factorization.

201122321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143965.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 201122321123 its reverse (321123221102), we get a palindrome (522245542225).

The spelling of 201122321123 in words is "two hundred one billion, one hundred twenty-two million, three hundred twenty-one thousand, one hundred twenty-three".