103111103320321 has 4 divisors (see below), whose sum is σ = 103463018349012. Its totient is φ = 102759188291632.

The previous prime is 103111103320243. The next prime is 103111103320333. The reversal of 103111103320321 is 123023301111301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49221996873921 + 53889106446400 = 7015839^2 + 7340920^2 .

It is a cyclic number.

It is not a de Polignac number, because 103111103320321 - 2¹⁷ = 103111103189249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103111103320292 and 103111103320301.

It is not an unprimeable number, because it can be changed into a prime (103111103326321) 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, 175957513906 + ... + 175957514491.

It is an arithmetic number, because the mean of its divisors is an integer number (25865754587253).

Almost surely, 2^{103111103320321} is an apocalyptic number.

It is an amenable number.

103111103320321 is a deficient number, since it is larger than the sum of its proper divisors (351915028691).

103111103320321 is an equidigital number, since it uses as much as digits as its factorization.

103111103320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351915028690.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 103111103320321 its reverse (123023301111301), we get a palindrome (226134404431622).

The spelling of 103111103320321 in words is "one hundred three trillion, one hundred eleven billion, one hundred three million, three hundred twenty thousand, three hundred twenty-one".