210002122000123 has 4 divisors (see below), whose sum is σ = 211655682016000. Its totient is φ = 208348561984248.

The previous prime is 210002122000103. The next prime is 210002122000141. The reversal of 210002122000123 is 321000221200012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210002122000123 - 2⁵ = 210002122000091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210002122000097 and 210002122000106.

It is not an unprimeable number, because it can be changed into a prime (210002122000103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 826780007748 + ... + 826780008001.

It is an arithmetic number, because the mean of its divisors is an integer number (52913920504000).

Almost surely, 2^{210002122000123} is an apocalyptic number.

210002122000123 is a deficient number, since it is larger than the sum of its proper divisors (1653560015877).

210002122000123 is a wasteful number, since it uses less digits than its factorization.

210002122000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653560015876.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 210002122000123 its reverse (321000221200012), we get a palindrome (531002343200135).

The spelling of 210002122000123 in words is "two hundred ten trillion, two billion, one hundred twenty-two million, one hundred twenty-three", and thus it is an aban number.