100021200332123 has 16 divisors (see below), whose sum is σ = 115341769154496. Its totient is φ = 84958854220800.

The previous prime is 100021200332107. The next prime is 100021200332153. The reversal of 100021200332123 is 321233002120001.

It is not a de Polignac number, because 100021200332123 - 2⁴ = 100021200332107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021200332095 and 100021200332104.

It is not an unprimeable number, because it can be changed into a prime (100021200332153) 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, 6580586 + ... + 15599567.

It is an arithmetic number, because the mean of its divisors is an integer number (7208860572156).

Almost surely, 2^{100021200332123} is an apocalyptic number.

100021200332123 is a deficient number, since it is larger than the sum of its proper divisors (15320568822373).

100021200332123 is a wasteful number, since it uses less digits than its factorization.

100021200332123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22185974.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 100021200332123 its reverse (321233002120001), we get a palindrome (421254202452124).

The spelling of 100021200332123 in words is "one hundred trillion, twenty-one billion, two hundred million, three hundred thirty-two thousand, one hundred twenty-three".