13103221072 has 40 divisors (see below), whose sum is σ = 26594565696. Its totient is φ = 6242328576.

The previous prime is 13103221051. The next prime is 13103221073. The reversal of 13103221072 is 27012230131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103221073) 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, 25303 + ... + 163849.

Almost surely, 2^13103221072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13103221072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13297282848).

13103221072 is an abundant number, since it is smaller than the sum of its proper divisors (13491344624).

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

13103221072 is a wasteful number, since it uses less digits than its factorization.

13103221072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138835 (or 138829 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The spelling of 13103221072 in words is "thirteen billion, one hundred three million, two hundred twenty-one thousand, seventy-two".