100120613 has 2 divisors, whose sum is σ = 100120614. Its totient is φ = 100120612.

The previous prime is 100120591. The next prime is 100120619. The reversal of 100120613 is 316021001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86452804 + 13667809 = 9298^2 + 3697^2 .

It is a cyclic number.

It is not a de Polignac number, because 100120613 - 2¹⁴ = 100104229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100120619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060306 + 50060307.

It is an arithmetic number, because the mean of its divisors is an integer number (50060307).

Almost surely, 2^100120613 is an apocalyptic number.

It is an amenable number.

100120613 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120613 is an equidigital number, since it uses as much as digits as its factorization.

100120613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 100120613 is about 10006.0288326588. The cubic root of 100120613 is about 464.3454203701.

Adding to 100120613 its reverse (316021001), we get a palindrome (416141614).

The spelling of 100120613 in words is "one hundred million, one hundred twenty thousand, six hundred thirteen".