130521141530 has 32 divisors (see below), whose sum is σ = 255515290128. Its totient is φ = 47715264000.

The previous prime is 130521141529. The next prime is 130521141533. The reversal of 130521141530 is 35141125031.

It can be written as a sum of positive squares in 8 ways, for example, as 45223850281 + 85297291249 = 212659^2 + 292057^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 130521141530.

It is not an unprimeable number, because it can be changed into a prime (130521141533) 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, 4957211 + ... + 4983470.

Almost surely, 2^130521141530 is an apocalyptic number.

130521141530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130521141530 is a deficient number, since it is larger than the sum of its proper divisors (124994148598).

130521141530 is a wasteful number, since it uses less digits than its factorization.

130521141530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9940802.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 130521141530 its reverse (35141125031), we get a palindrome (165662266561).

The spelling of 130521141530 in words is "one hundred thirty billion, five hundred twenty-one million, one hundred forty-one thousand, five hundred thirty".