13031223000 has 128 divisors (see below), whose sum is σ = 40698141120. Its totient is φ = 3471513600.

The previous prime is 13031222977. The next prime is 13031223013. The reversal of 13031223000 is 32213031.

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 31 ways as a sum of consecutive naturals, for example, 4657602 + ... + 4660398.

Almost surely, 2^13031223000 is an apocalyptic number.

13031223000 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 13031223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20349070560).

13031223000 is an abundant number, since it is smaller than the sum of its proper divisors (27666918120).

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

13031223000 is a wasteful number, since it uses less digits than its factorization.

13031223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374 (or 4360 counting only the distinct ones).

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

Adding to 13031223000 its reverse (32213031), we get a palindrome (13063436031).

The spelling of 13031223000 in words is "thirteen billion, thirty-one million, two hundred twenty-three thousand".