1002423312161 has 4 divisors (see below), whose sum is σ = 1036989633300. Its totient is φ = 967856991024.

The previous prime is 1002423312097. The next prime is 1002423312211. The reversal of 1002423312161 is 1612133242001.

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 243226512400 + 759196799761 = 493180^2 + 871319^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002423312161 - 2⁶ = 1002423312097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1002423312161.

It is not an unprimeable number, because it can be changed into a prime (1002423312061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17283160526 + ... + 17283160583.

It is an arithmetic number, because the mean of its divisors is an integer number (259247408325).

Almost surely, 2^{1002423312161} is an apocalyptic number.

It is an amenable number.

1002423312161 is a deficient number, since it is larger than the sum of its proper divisors (34566321139).

1002423312161 is an equidigital number, since it uses as much as digits as its factorization.

1002423312161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34566321138.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 1002423312161 its reverse (1612133242001), we get a palindrome (2614556554162).

The spelling of 1002423312161 in words is "one trillion, two billion, four hundred twenty-three million, three hundred twelve thousand, one hundred sixty-one".