103111211321111 has 16 divisors (see below), whose sum is σ = 118177357562880. Its totient is φ = 88129415556000.

The previous prime is 103111211321101. The next prime is 103111211321189. The reversal of 103111211321111 is 111123112111301.

It is not a de Polignac number, because 103111211321111 - 2³⁴ = 103094031451927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103111211321101) 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, 11417336 + ... + 18346061.

It is an arithmetic number, because the mean of its divisors is an integer number (7386084847680).

Almost surely, 2^{103111211321111} is an apocalyptic number.

103111211321111 is a deficient number, since it is larger than the sum of its proper divisors (15066146241769).

103111211321111 is an equidigital number, since it uses as much as digits as its factorization.

103111211321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29764814.

The product of its (nonzero) digits is 36, while the sum is 20.

Adding to 103111211321111 its reverse (111123112111301), we get a palindrome (214234323432412).

The spelling of 103111211321111 in words is "one hundred three trillion, one hundred eleven billion, two hundred eleven million, three hundred twenty-one thousand, one hundred eleven".