13220031303 has 12 divisors (see below), whose sum is σ = 19802845608. Its totient is φ = 8813354040.

The previous prime is 13220031301. The next prime is 13220031371. The reversal of 13220031303 is 30313002231.

13220031303 is a `hidden beast` number, since 132 + 200 + 31 + 303 = 666.

It is not a de Polignac number, because 13220031303 - 2¹ = 13220031301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220031301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27201468 + ... + 27201953.

It is an arithmetic number, because the mean of its divisors is an integer number (1650237134).

Almost surely, 2^13220031303 is an apocalyptic number.

13220031303 is a deficient number, since it is larger than the sum of its proper divisors (6582814305).

13220031303 is an frugal number, since it uses more digits than its factorization.

13220031303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54403436 (or 54403424 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 13220031303 its reverse (30313002231), we get a palindrome (43533033534).

The spelling of 13220031303 in words is "thirteen billion, two hundred twenty million, thirty-one thousand, three hundred three".