1503123413173 has 2 divisors, whose sum is σ = 1503123413174. Its totient is φ = 1503123413172.

The previous prime is 1503123413123. The next prime is 1503123413227. The reversal of 1503123413173 is 3713143213051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 899420830884 + 603702582289 = 948378^2 + 776983^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1503123413173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1503123413123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751561706586 + 751561706587.

It is an arithmetic number, because the mean of its divisors is an integer number (751561706587).

Almost surely, 2^{1503123413173} is an apocalyptic number.

It is an amenable number.

1503123413173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1503123413173 is an equidigital number, since it uses as much as digits as its factorization.

1503123413173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 1503123413173 in words is "one trillion, five hundred three billion, one hundred twenty-three million, four hundred thirteen thousand, one hundred seventy-three".