10103123311111 has 2 divisors, whose sum is σ = 10103123311112. Its totient is φ = 10103123311110.

The previous prime is 10103123311087. The next prime is 10103123311123. The reversal of 10103123311111 is 11111332130101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10103123311111 - 2⁴¹ = 7904100055559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10103123311511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051561655555 + 5051561655556.

It is an arithmetic number, because the mean of its divisors is an integer number (5051561655556).

Almost surely, 2^{10103123311111} is an apocalyptic number.

10103123311111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10103123311111 is an equidigital number, since it uses as much as digits as its factorization.

10103123311111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 10103123311111 its reverse (11111332130101), we get a palindrome (21214455441212).

The spelling of 10103123311111 in words is "ten trillion, one hundred three billion, one hundred twenty-three million, three hundred eleven thousand, one hundred eleven".