1001320222303 has 4 divisors (see below), whose sum is σ = 1001959228480. Its totient is φ = 1000681216128.

The previous prime is 1001320222247. The next prime is 1001320222339. The reversal of 1001320222303 is 3032220231001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001320222303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001320292303) 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, 319500738 + ... + 319503871.

It is an arithmetic number, because the mean of its divisors is an integer number (250489807120).

Almost surely, 2^{1001320222303} is an apocalyptic number.

1001320222303 is a deficient number, since it is larger than the sum of its proper divisors (639006177).

1001320222303 is an equidigital number, since it uses as much as digits as its factorization.

1001320222303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639006176.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1001320222303 its reverse (3032220231001), we get a palindrome (4033540453304).

The spelling of 1001320222303 in words is "one trillion, one billion, three hundred twenty million, two hundred twenty-two thousand, three hundred three".