13030511240 has 64 divisors (see below), whose sum is σ = 29974613760. Its totient is φ = 5095828480.

The previous prime is 13030511233. The next prime is 13030511243. The reversal of 13030511240 is 4211503031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (13030511243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2047904 + ... + 2054256.

It is an arithmetic number, because the mean of its divisors is an integer number (468353340).

Almost surely, 2^13030511240 is an apocalyptic number.

13030511240 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 13030511240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14987306880).

13030511240 is an abundant number, since it is smaller than the sum of its proper divisors (16944102520).

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

13030511240 is a wasteful number, since it uses less digits than its factorization.

13030511240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7502 (or 7498 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The spelling of 13030511240 in words is "thirteen billion, thirty million, five hundred eleven thousand, two hundred forty".