13220302031 has 8 divisors (see below), whose sum is σ = 13613660928. Its totient is φ = 12830320000.

The previous prime is 13220302013. The next prime is 13220302097. The reversal of 13220302031 is 13020302231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220302031 is a prime.

It is a super-2 number, since 2×13220302031² (a number of 21 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 (13220307031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836270 + ... + 851931.

It is an arithmetic number, because the mean of its divisors is an integer number (1701707616).

Almost surely, 2^13220302031 is an apocalyptic number.

13220302031 is a deficient number, since it is larger than the sum of its proper divisors (393358897).

13220302031 is a wasteful number, since it uses less digits than its factorization.

13220302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688433.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 13220302031 its reverse (13020302231), we get a palindrome (26240604262).

The spelling of 13220302031 in words is "thirteen billion, two hundred twenty million, three hundred two thousand, thirty-one".