101221320203 has 8 divisors (see below), whose sum is σ = 101459921472. Its totient is φ = 100982813256.

The previous prime is 101221320143. The next prime is 101221320259. The reversal of 101221320203 is 302023122101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101221320203 is a prime.

It is a super-2 number, since 2×101221320203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101221320293) 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, 2420276 + ... + 2461742.

It is an arithmetic number, because the mean of its divisors is an integer number (12682490184).

Almost surely, 2^101221320203 is an apocalyptic number.

101221320203 is a deficient number, since it is larger than the sum of its proper divisors (238601269).

101221320203 is an equidigital number, since it uses as much as digits as its factorization.

101221320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47161.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 101221320203 its reverse (302023122101), we get a palindrome (403244442304).

The spelling of 101221320203 in words is "one hundred one billion, two hundred twenty-one million, three hundred twenty thousand, two hundred three".