13223031000 has 256 divisors, whose sum is σ = 44150745600. Its totient is φ = 3284928000.

The previous prime is 13223030987. The next prime is 13223031013. The reversal of 13223031000 is 13032231.

It is an interprime number because it is at equal distance from previous prime (13223030987) and next prime (13223031013).

It is a super-2 number, since 2×13223031000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3475099 + ... + 3478901.

It is an arithmetic number, because the mean of its divisors is an integer number (172463850).

Almost surely, 2^13223031000 is an apocalyptic number.

13223031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13223031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22075372800).

13223031000 is an abundant number, since it is smaller than the sum of its proper divisors (30927714600).

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

13223031000 is a wasteful number, since it uses less digits than its factorization.

13223031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907 (or 3893 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 13223031000 its reverse (13032231), we get a palindrome (13236063231).

The spelling of 13223031000 in words is "thirteen billion, two hundred twenty-three million, thirty-one thousand".