100120215029 has 2 divisors, whose sum is σ = 100120215030. Its totient is φ = 100120215028.

The previous prime is 100120215007. The next prime is 100120215059. The reversal of 100120215029 is 920512021001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81082562500 + 19037652529 = 284750^2 + 137977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100120215029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100120214995 and 100120215013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100120215059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060107514 + 50060107515.

It is an arithmetic number, because the mean of its divisors is an integer number (50060107515).

Almost surely, 2^100120215029 is an apocalyptic number.

It is an amenable number.

100120215029 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120215029 is an equidigital number, since it uses as much as digits as its factorization.

100120215029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The spelling of 100120215029 in words is "one hundred billion, one hundred twenty million, two hundred fifteen thousand, twenty-nine".