100120231969 has 2 divisors, whose sum is σ = 100120231970. Its totient is φ = 100120231968.

The previous prime is 100120231963. The next prime is 100120232033. The reversal of 100120231969 is 969132021001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80535628944 + 19584603025 = 283788^2 + 139945^2 .

It is a cyclic number.

It is not a de Polignac number, because 100120231969 - 2¹¹ = 100120229921 is a prime.

It is a super-2 number, since 2×100120231969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100120231963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060115984 + 50060115985.

It is an arithmetic number, because the mean of its divisors is an integer number (50060115985).

Almost surely, 2^100120231969 is an apocalyptic number.

It is an amenable number.

100120231969 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120231969 is an equidigital number, since it uses as much as digits as its factorization.

100120231969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 34.

The spelling of 100120231969 in words is "one hundred billion, one hundred twenty million, two hundred thirty-one thousand, nine hundred sixty-nine".