101312123203 has 4 divisors (see below), whose sum is σ = 107271659880. Its totient is φ = 95352586528.

The previous prime is 101312123197. The next prime is 101312123221. The reversal of 101312123203 is 302321213101.

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 101312123203 - 2²⁵ = 101278568771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101312123293) 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, 2979768313 + ... + 2979768346.

It is an arithmetic number, because the mean of its divisors is an integer number (26817914970).

Almost surely, 2^101312123203 is an apocalyptic number.

101312123203 is a deficient number, since it is larger than the sum of its proper divisors (5959536677).

101312123203 is an equidigital number, since it uses as much as digits as its factorization.

101312123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5959536676.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 101312123203 its reverse (302321213101), we get a palindrome (403633336304).

It can be divided in two parts, 1013121 and 23203, that added together give a square (1036324 = 1018²).

The spelling of 101312123203 in words is "one hundred one billion, three hundred twelve million, one hundred twenty-three thousand, two hundred three".