13120352530 has 32 divisors (see below), whose sum is σ = 25940476800. Its totient is φ = 4755750912.

The previous prime is 13120352527. The next prime is 13120352533. The reversal of 13120352530 is 3525302131.

It is an interprime number because it is at equal distance from previous prime (13120352527) and next prime (13120352533).

It is a super-2 number, since 2×13120352530² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13120352495 and 13120352504.

It is not an unprimeable number, because it can be changed into a prime (13120352533) 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, 1496815 + ... + 1505554.

It is an arithmetic number, because the mean of its divisors is an integer number (810639900).

Almost surely, 2^13120352530 is an apocalyptic number.

13120352530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120352530 is a deficient number, since it is larger than the sum of its proper divisors (12820124270).

13120352530 is a wasteful number, since it uses less digits than its factorization.

13120352530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002418.

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 13120352530 its reverse (3525302131), we get a palindrome (16645654661).

The spelling of 13120352530 in words is "thirteen billion, one hundred twenty million, three hundred fifty-two thousand, five hundred thirty".