12040520530 has 8 divisors (see below), whose sum is σ = 21672936972. Its totient is φ = 4816208208.

The previous prime is 12040520509. The next prime is 12040520551. The reversal of 12040520530 is 3502504021.

It is an interprime number because it is at equal distance from previous prime (12040520509) and next prime (12040520551).

It can be written as a sum of positive squares in 2 ways, for example, as 11125397529 + 915123001 = 105477^2 + 30251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602026017 + ... + 602026036.

Almost surely, 2^12040520530 is an apocalyptic number.

12040520530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12040520530 is a deficient number, since it is larger than the sum of its proper divisors (9632416442).

12040520530 is a wasteful number, since it uses less digits than its factorization.

12040520530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204052060.

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 12040520530 in words is "twelve billion, forty million, five hundred twenty thousand, five hundred thirty".