103120217926181 has 2 divisors, whose sum is σ = 103120217926182. Its totient is φ = 103120217926180.

The previous prime is 103120217926177. The next prime is 103120217926237. The reversal of 103120217926181 is 181629712021301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100709433797281 + 2410784128900 = 10035409^2 + 1552670^2 .

It is a cyclic number.

It is not a de Polignac number, because 103120217926181 - 2² = 103120217926177 is a prime.

It is a super-2 number, since 2×103120217926181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103120217926171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51560108963090 + 51560108963091.

It is an arithmetic number, because the mean of its divisors is an integer number (51560108963091).

Almost surely, 2^{103120217926181} is an apocalyptic number.

It is an amenable number.

103120217926181 is a deficient number, since it is larger than the sum of its proper divisors (1).

103120217926181 is an equidigital number, since it uses as much as digits as its factorization.

103120217926181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 44.

Adding to 103120217926181 its reverse (181629712021301), we get a palindrome (284749929947482).

The spelling of 103120217926181 in words is "one hundred three trillion, one hundred twenty billion, two hundred seventeen million, nine hundred twenty-six thousand, one hundred eighty-one".