210011122123 has 8 divisors (see below), whose sum is σ = 242579692080. Its totient is φ = 179688660480.

The previous prime is 210011122117. The next prime is 210011122129. The reversal of 210011122123 is 321221110012.

It is an interprime number because it is at equal distance from previous prime (210011122117) and next prime (210011122129).

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 210011122123 - 2¹⁷ = 210010991051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210011122097 and 210011122106.

It is not an unprimeable number, because it can be changed into a prime (210011122129) 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, 561526878 + ... + 561527251.

It is an arithmetic number, because the mean of its divisors is an integer number (30322461510).

Almost surely, 2^210011122123 is an apocalyptic number.

210011122123 is a deficient number, since it is larger than the sum of its proper divisors (32568569957).

210011122123 is a wasteful number, since it uses less digits than its factorization.

210011122123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123054157.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 210011122123 its reverse (321221110012), we get a palindrome (531232232135).

The spelling of 210011122123 in words is "two hundred ten billion, eleven million, one hundred twenty-two thousand, one hundred twenty-three".