2021100300123 has 8 divisors (see below), whose sum is σ = 2757470177088. Its totient is φ = 1316065311624.

The previous prime is 2021100300101. The next prime is 2021100300157. The reversal of 2021100300123 is 3210030011202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021100300123 - 2¹⁴ = 2021100283739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021100300173) 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, 7833721965 + ... + 7833722222.

It is an arithmetic number, because the mean of its divisors is an integer number (344683772136).

Almost surely, 2^{2021100300123} is an apocalyptic number.

2021100300123 is a deficient number, since it is larger than the sum of its proper divisors (736369876965).

2021100300123 is a wasteful number, since it uses less digits than its factorization.

2021100300123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15667444233.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2021100300123 its reverse (3210030011202), we get a palindrome (5231130311325).

The spelling of 2021100300123 in words is "two trillion, twenty-one billion, one hundred million, three hundred thousand, one hundred twenty-three".