101123103121 has 4 divisors (see below), whose sum is σ = 101850607600. Its totient is φ = 100395598644.

The previous prime is 101123103101. The next prime is 101123103167. The reversal of 101123103121 is 121301321101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101123103121 - 2¹¹ = 101123101073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101123103095 and 101123103104.

It is not an unprimeable number, because it can be changed into a prime (101123103101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363752031 + ... + 363752308.

It is an arithmetic number, because the mean of its divisors is an integer number (25462651900).

Almost surely, 2^101123103121 is an apocalyptic number.

It is an amenable number.

101123103121 is a deficient number, since it is larger than the sum of its proper divisors (727504479).

101123103121 is an equidigital number, since it uses as much as digits as its factorization.

101123103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727504478.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 101123103121 its reverse (121301321101), we get a palindrome (222424424222).

The spelling of 101123103121 in words is "one hundred one billion, one hundred twenty-three million, one hundred three thousand, one hundred twenty-one".