103120003081 has 2 divisors, whose sum is σ = 103120003082. Its totient is φ = 103120003080.

The previous prime is 103120003073. The next prime is 103120003099. The reversal of 103120003081 is 180300021301.

103120003081 is nontrivially palindromic in base 4.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65799945225 + 37320057856 = 256515^2 + 193184^2 .

It is an emirp because it is prime and its reverse (180300021301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103120003081 - 2³ = 103120003073 is a prime.

It is a super-2 number, since 2×103120003081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103120303081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51560001540 + 51560001541.

It is an arithmetic number, because the mean of its divisors is an integer number (51560001541).

Almost surely, 2^103120003081 is an apocalyptic number.

It is an amenable number.

103120003081 is a deficient number, since it is larger than the sum of its proper divisors (1).

103120003081 is an equidigital number, since it uses as much as digits as its factorization.

103120003081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 103120003081 its reverse (180300021301), we get a palindrome (283420024382).

The spelling of 103120003081 in words is "one hundred three billion, one hundred twenty million, three thousand, eighty-one".