1023142122017 has 4 divisors (see below), whose sum is σ = 1023144205380. Its totient is φ = 1023140038656.

The previous prime is 1023142121959. The next prime is 1023142122029. The reversal of 1023142122017 is 7102212413201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 925028462656 + 98113659361 = 961784^2 + 313231^2 .

It is a cyclic number.

It is not a de Polignac number, because 1023142122017 - 2⁸ = 1023142121761 is a prime.

It is a super-2 number, since 2×1023142122017² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023142122917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147473 + ... + 1438065.

It is an arithmetic number, because the mean of its divisors is an integer number (255786051345).

Almost surely, 2^{1023142122017} is an apocalyptic number.

It is an amenable number.

1023142122017 is a deficient number, since it is larger than the sum of its proper divisors (2083363).

1023142122017 is an equidigital number, since it uses as much as digits as its factorization.

1023142122017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083362.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 1023142122017 its reverse (7102212413201), we get a palindrome (8125354535218).

The spelling of 1023142122017 in words is "one trillion, twenty-three billion, one hundred forty-two million, one hundred twenty-two thousand, seventeen".