210200100102123 has 16 divisors (see below), whose sum is σ = 283161629036160. Its totient is φ = 138686041541376.

The previous prime is 210200100102119. The next prime is 210200100102137. The reversal of 210200100102123 is 321201001002012.

It is not a de Polignac number, because 210200100102123 - 2² = 210200100102119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210200100102323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8126536 + ... + 22055402.

It is an arithmetic number, because the mean of its divisors is an integer number (17697601814760).

Almost surely, 2^{210200100102123} is an apocalyptic number.

210200100102123 is a deficient number, since it is larger than the sum of its proper divisors (72961528934037).

210200100102123 is a wasteful number, since it uses less digits than its factorization.

210200100102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13980826.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 210200100102123 its reverse (321201001002012), we get a palindrome (531401101104135).

The spelling of 210200100102123 in words is "two hundred ten trillion, two hundred billion, one hundred million, one hundred two thousand, one hundred twenty-three".