1321361503303 has 16 divisors (see below), whose sum is σ = 1351835930880. Its totient is φ = 1291230388224.

The previous prime is 1321361503271. The next prime is 1321361503321. The reversal of 1321361503303 is 3033051631231.

It is a cyclic number.

It is not a de Polignac number, because 1321361503303 - 2⁵ = 1321361503271 is a prime.

It is a super-2 number, since 2×1321361503303² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321361503103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22399575 + ... + 22458487.

It is an arithmetic number, because the mean of its divisors is an integer number (84489745680).

Almost surely, 2^{1321361503303} is an apocalyptic number.

1321361503303 is a deficient number, since it is larger than the sum of its proper divisors (30474427577).

1321361503303 is a wasteful number, since it uses less digits than its factorization.

1321361503303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61818.

The product of its (nonzero) digits is 14580, while the sum is 31.

The spelling of 1321361503303 in words is "one trillion, three hundred twenty-one billion, three hundred sixty-one million, five hundred three thousand, three hundred three".