103111030223021 has 8 divisors (see below), whose sum is σ = 103429269710520. Its totient is φ = 102792863351808.

The previous prime is 103111030222919. The next prime is 103111030223027. The reversal of 103111030223021 is 120322030111301.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 340806093796 + 102770224129225 = 583786^2 + 10137565^2 .

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-103111030223021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103111030222984 and 103111030223002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103111030223027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15309116 + ... + 20990261.

It is an arithmetic number, because the mean of its divisors is an integer number (12928658713815).

Almost surely, 2^{103111030223021} is an apocalyptic number.

It is an amenable number.

103111030223021 is a deficient number, since it is larger than the sum of its proper divisors (318239487499).

103111030223021 is an equidigital number, since it uses as much as digits as its factorization.

103111030223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36308143.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 103111030223021 its reverse (120322030111301), we get a palindrome (223433060334322).

The spelling of 103111030223021 in words is "one hundred three trillion, one hundred eleven billion, thirty million, two hundred twenty-three thousand, twenty-one".