100201201102123 has 4 divisors (see below), whose sum is σ = 109310401202328. Its totient is φ = 91092001001920.

The previous prime is 100201201102097. The next prime is 100201201102147. The reversal of 100201201102123 is 321201102102001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100201201102123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100201201102097 and 100201201102106.

It is not an unprimeable number, because it can be changed into a prime (100201201102423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4554600050086 + ... + 4554600050107.

It is an arithmetic number, because the mean of its divisors is an integer number (27327600300582).

Almost surely, 2^{100201201102123} is an apocalyptic number.

100201201102123 is a deficient number, since it is larger than the sum of its proper divisors (9109200100205).

100201201102123 is an equidigital number, since it uses as much as digits as its factorization.

100201201102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9109200100204.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 100201201102123 its reverse (321201102102001), we get a palindrome (421402303204124).

The spelling of 100201201102123 in words is "one hundred trillion, two hundred one billion, two hundred one million, one hundred two thousand, one hundred twenty-three".