101321203123203 has 16 divisors (see below), whose sum is σ = 154480516304640. Its totient is φ = 57865467098016.

The previous prime is 101321203123171. The next prime is 101321203123213. The reversal of 101321203123203 is 302321302123101.

It is not a de Polignac number, because 101321203123203 - 2⁵ = 101321203123171 is a prime.

It is a super-2 number, since 2×101321203123203² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101321203123213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1348430625 + ... + 1348505762.

It is an arithmetic number, because the mean of its divisors is an integer number (9655032269040).

Almost surely, 2^{101321203123203} is an apocalyptic number.

101321203123203 is a deficient number, since it is larger than the sum of its proper divisors (53159313181437).

101321203123203 is a wasteful number, since it uses less digits than its factorization.

101321203123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696938186.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 101321203123203 its reverse (302321302123101), we get a palindrome (403642505246304).

The spelling of 101321203123203 in words is "one hundred one trillion, three hundred twenty-one billion, two hundred three million, one hundred twenty-three thousand, two hundred three".