1031001401173 has 2 divisors, whose sum is σ = 1031001401174. Its totient is φ = 1031001401172.

The previous prime is 1031001401077. The next prime is 1031001401191. The reversal of 1031001401173 is 3711041001301.

1031001401173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 569229507729 + 461771893444 = 754473^2 + 679538^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031001401173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1031001471173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515500700586 + 515500700587.

It is an arithmetic number, because the mean of its divisors is an integer number (515500700587).

Almost surely, 2^{1031001401173} is an apocalyptic number.

It is an amenable number.

1031001401173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031001401173 is an equidigital number, since it uses as much as digits as its factorization.

1031001401173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 1031001401173 its reverse (3711041001301), we get a palindrome (4742042402474).

The spelling of 1031001401173 in words is "one trillion, thirty-one billion, one million, four hundred one thousand, one hundred seventy-three".