210200021202123 has 8 divisors (see below), whose sum is σ = 311407438818000. Its totient is φ = 140133347468064.

The previous prime is 210200021202049. The next prime is 210200021202131. The reversal of 210200021202123 is 321202120002012.

210200021202123 is a `hidden beast` number, since 210 + 200 + 0 + 21 + 20 + 212 + 3 = 666.

210200021202123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210200021202123 - 2⁸ = 210200021201867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210200021202096 and 210200021202105.

It is not an unprimeable number, because it can be changed into a prime (210200021282123) 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, 3892592985198 + ... + 3892592985251.

It is an arithmetic number, because the mean of its divisors is an integer number (38925929852250).

Almost surely, 2^{210200021202123} is an apocalyptic number.

210200021202123 is a deficient number, since it is larger than the sum of its proper divisors (101207417615877).

210200021202123 is an equidigital number, since it uses as much as digits as its factorization.

210200021202123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7785185970458 (or 7785185970452 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 210200021202123 its reverse (321202120002012), we get a palindrome (531402141204135).

The spelling of 210200021202123 in words is "two hundred ten trillion, two hundred billion, twenty-one million, two hundred two thousand, one hundred twenty-three".