102100121110123 has 2 divisors, whose sum is σ = 102100121110124. Its totient is φ = 102100121110122.

The previous prime is 102100121110087. The next prime is 102100121110133. The reversal of 102100121110123 is 321011121001201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102100121110123 - 2³³ = 102091531175531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102100121110097 and 102100121110106.

It is not a weakly prime, because it can be changed into another prime (102100121110133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050060555061 + 51050060555062.

It is an arithmetic number, because the mean of its divisors is an integer number (51050060555062).

Almost surely, 2^{102100121110123} is an apocalyptic number.

102100121110123 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100121110123 is an equidigital number, since it uses as much as digits as its factorization.

102100121110123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 102100121110123 its reverse (321011121001201), we get a palindrome (423111242111324).

The spelling of 102100121110123 in words is "one hundred two trillion, one hundred billion, one hundred twenty-one million, one hundred ten thousand, one hundred twenty-three".