101203120123 has 8 divisors (see below), whose sum is σ = 117556786400. Its totient is φ = 85323473280.

The previous prime is 101203120049. The next prime is 101203120153. The reversal of 101203120123 is 321021302101.

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

It is a cyclic number.

It is not a de Polignac number, because 101203120123 - 2¹³ = 101203111931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101203120097 and 101203120106.

It is not an unprimeable number, because it can be changed into a prime (101203120153) 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, 118504398 + ... + 118505251.

It is an arithmetic number, because the mean of its divisors is an integer number (14694598300).

Almost surely, 2^101203120123 is an apocalyptic number.

101203120123 is a deficient number, since it is larger than the sum of its proper divisors (16353666277).

101203120123 is an equidigital number, since it uses as much as digits as its factorization.

101203120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237009717.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 101203120123 its reverse (321021302101), we get a palindrome (422224422224).

The spelling of 101203120123 in words is "one hundred one billion, two hundred three million, one hundred twenty thousand, one hundred twenty-three".