100121311127 has 2 divisors, whose sum is σ = 100121311128. Its totient is φ = 100121311126.

The previous prime is 100121311093. The next prime is 100121311133. The reversal of 100121311127 is 721113121001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100121311127 - 2⁸ = 100121310871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100121311099 and 100121311108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100121311177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060655563 + 50060655564.

It is an arithmetic number, because the mean of its divisors is an integer number (50060655564).

Almost surely, 2^100121311127 is an apocalyptic number.

100121311127 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121311127 is an equidigital number, since it uses as much as digits as its factorization.

100121311127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 100121311127 its reverse (721113121001), we get a palindrome (821234432128).

The spelling of 100121311127 in words is "one hundred billion, one hundred twenty-one million, three hundred eleven thousand, one hundred twenty-seven".