103031220121101 has 6 divisors (see below), whose sum is σ = 148822873508270. Its totient is φ = 68687480080728.

The previous prime is 103031220121087. The next prime is 103031220121129. The reversal of 103031220121101 is 101121022130301.

103031220121101 is a `hidden beast` number, since 1 + 0 + 30 + 312 + 201 + 21 + 101 = 666.

It can be written as a sum of positive squares in only one way, i.e., 76205305089225 + 26825915031876 = 8729565^2 + 5179374^2 .

It is not a de Polignac number, because 103031220121101 - 2⁷ = 103031220120973 is a prime.

It is a super-2 number, since 2×103031220121101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103031220122101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5723956673386 + ... + 5723956673403.

Almost surely, 2^{103031220121101} is an apocalyptic number.

It is an amenable number.

103031220121101 is a deficient number, since it is larger than the sum of its proper divisors (45791653387169).

103031220121101 is a wasteful number, since it uses less digits than its factorization.

103031220121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11447913346795 (or 11447913346792 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 103031220121101 its reverse (101121022130301), we get a palindrome (204152242251402).

The spelling of 103031220121101 in words is "one hundred three trillion, thirty-one billion, two hundred twenty million, one hundred twenty-one thousand, one hundred one".