120100100121787 has 2 divisors, whose sum is σ = 120100100121788. Its totient is φ = 120100100121786.

The previous prime is 120100100121733. The next prime is 120100100121829. The reversal of 120100100121787 is 787121001001021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120100100121787 - 2²⁷ = 120099965904059 is a prime.

It is not a weakly prime, because it can be changed into another prime (120100100121187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60050050060893 + 60050050060894.

It is an arithmetic number, because the mean of its divisors is an integer number (60050050060894).

Almost surely, 2^{120100100121787} is an apocalyptic number.

120100100121787 is a deficient number, since it is larger than the sum of its proper divisors (1).

120100100121787 is an equidigital number, since it uses as much as digits as its factorization.

120100100121787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 31.

The spelling of 120100100121787 in words is "one hundred twenty trillion, one hundred billion, one hundred million, one hundred twenty-one thousand, seven hundred eighty-seven".