10101111100123 has 2 divisors, whose sum is σ = 10101111100124. Its totient is φ = 10101111100122.

The previous prime is 10101111100043. The next prime is 10101111100139. The reversal of 10101111100123 is 32100111110101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10101111100123 is a prime.

It is not a weakly prime, because it can be changed into another prime (10101111100153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050555550061 + 5050555550062.

It is an arithmetic number, because the mean of its divisors is an integer number (5050555550062).

Almost surely, 2^{10101111100123} is an apocalyptic number.

10101111100123 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101111100123 is an equidigital number, since it uses as much as digits as its factorization.

10101111100123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 10101111100123 its reverse (32100111110101), we get a palindrome (42201222210224).

The spelling of 10101111100123 in words is "ten trillion, one hundred one billion, one hundred eleven million, one hundred thousand, one hundred twenty-three".