101201223123123 has 4 divisors (see below), whose sum is σ = 134934964164168. Its totient is φ = 67467482082080.

The previous prime is 101201223123109. The next prime is 101201223123193. The reversal of 101201223123123 is 321321322102101.

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

It is a cyclic number.

It is not a de Polignac number, because 101201223123123 - 2¹³ = 101201223114931 is a prime.

It is a super-2 number, since 2×101201223123123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101201223123093 and 101201223123102.

It is not an unprimeable number, because it can be changed into a prime (101201223123193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16866870520518 + ... + 16866870520523.

It is an arithmetic number, because the mean of its divisors is an integer number (33733741041042).

Almost surely, 2^{101201223123123} is an apocalyptic number.

101201223123123 is a deficient number, since it is larger than the sum of its proper divisors (33733741041045).

101201223123123 is an equidigital number, since it uses as much as digits as its factorization.

101201223123123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33733741041044.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 101201223123123 its reverse (321321322102101), we get a palindrome (422522545225224).

The spelling of 101201223123123 in words is "one hundred one trillion, two hundred one billion, two hundred twenty-three million, one hundred twenty-three thousand, one hundred twenty-three".