1303323401000 has 32 divisors (see below), whose sum is σ = 3049776760680. Its totient is φ = 521329360000.

The previous prime is 1303323400999. The next prime is 1303323401033. The reversal of 1303323401000 is 1043233031.

It can be written as a sum of positive squares in 4 ways, for example, as 686680710244 + 616642690756 = 828662^2 + 785266^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651660701 + ... + 651662700.

Almost surely, 2^{1303323401000} is an apocalyptic number.

1303323401000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303323401000 is an abundant number, since it is smaller than the sum of its proper divisors (1746453359680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1303323401000 is a wasteful number, since it uses less digits than its factorization.

1303323401000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303323422 (or 1303323408 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1303323401000 its reverse (1043233031), we get a palindrome (1304366634031).

The spelling of 1303323401000 in words is "one trillion, three hundred three billion, three hundred twenty-three million, four hundred one thousand".