1431742073161 has 2 divisors, whose sum is σ = 1431742073162. Its totient is φ = 1431742073160.

The previous prime is 1431742073071. The next prime is 1431742073189. The reversal of 1431742073161 is 1613702471341.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1242290805561 + 189451267600 = 1114581^2 + 435260^2 .

It is an emirp because it is prime and its reverse (1613702471341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1431742073161 - 2¹⁷ = 1431741942089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1431742073261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715871036580 + 715871036581.

It is an arithmetic number, because the mean of its divisors is an integer number (715871036581).

Almost surely, 2^{1431742073161} is an apocalyptic number.

It is an amenable number.

1431742073161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431742073161 is an equidigital number, since it uses as much as digits as its factorization.

1431742073161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 1431742073161 in words is "one trillion, four hundred thirty-one billion, seven hundred forty-two million, seventy-three thousand, one hundred sixty-one".