202102101300123 has 24 divisors (see below), whose sum is σ = 295623243801600. Its totient is φ = 133028002761264.

The previous prime is 202102101300107. The next prime is 202102101300161. The reversal of 202102101300123 is 321003101201202.

202102101300123 is a `hidden beast` number, since 20 + 2 + 10 + 210 + 1 + 300 + 123 = 666.

It is not a de Polignac number, because 202102101300123 - 2⁴ = 202102101300107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202102101300096 and 202102101300105.

It is not an unprimeable number, because it can be changed into a prime (202102101300193) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79205848 + ... + 81717626.

It is an arithmetic number, because the mean of its divisors is an integer number (12317635158400).

Almost surely, 2^{202102101300123} is an apocalyptic number.

202102101300123 is a deficient number, since it is larger than the sum of its proper divisors (93521142501477).

202102101300123 is a wasteful number, since it uses less digits than its factorization.

202102101300123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625031 (or 2625028 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 202102101300123 its reverse (321003101201202), we get a palindrome (523105202501325).

The spelling of 202102101300123 in words is "two hundred two trillion, one hundred two billion, one hundred one million, three hundred thousand, one hundred twenty-three".