1303442163681 has 8 divisors (see below), whose sum is σ = 1986197582784. Its totient is φ = 744824093520.

The previous prime is 1303442163593. The next prime is 1303442163689. The reversal of 1303442163681 is 1863612443031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1303442163681 - 2⁷ = 1303442163553 is a prime.

It is a super-2 number, since 2×1303442163681² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1303442163689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31034337210 + ... + 31034337251.

It is an arithmetic number, because the mean of its divisors is an integer number (248274697848).

Almost surely, 2^{1303442163681} is an apocalyptic number.

It is an amenable number.

1303442163681 is a deficient number, since it is larger than the sum of its proper divisors (682755419103).

1303442163681 is an equidigital number, since it uses as much as digits as its factorization.

1303442163681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62068674471.

The product of its (nonzero) digits is 248832, while the sum is 42.

The spelling of 1303442163681 in words is "one trillion, three hundred three billion, four hundred forty-two million, one hundred sixty-three thousand, six hundred eighty-one".