103031012173 has 2 divisors, whose sum is σ = 103031012174. Its totient is φ = 103031012172.

The previous prime is 103031012159. The next prime is 103031012191. The reversal of 103031012173 is 371210130301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83721686409 + 19309325764 = 289347^2 + 138958^2 .

It is a cyclic number.

It is not a de Polignac number, because 103031012173 - 2¹⁷ = 103030881101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103031019173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51515506086 + 51515506087.

It is an arithmetic number, because the mean of its divisors is an integer number (51515506087).

Almost surely, 2^103031012173 is an apocalyptic number.

It is an amenable number.

103031012173 is a deficient number, since it is larger than the sum of its proper divisors (1).

103031012173 is an equidigital number, since it uses as much as digits as its factorization.

103031012173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

Adding to 103031012173 its reverse (371210130301), we get a palindrome (474241142474).

The spelling of 103031012173 in words is "one hundred three billion, thirty-one million, twelve thousand, one hundred seventy-three".