12049531530 has 64 divisors (see below), whose sum is σ = 30461304960. Its totient is φ = 3042054144.

The previous prime is 12049531513. The next prime is 12049531553. The reversal of 12049531530 is 3513594021.

It is a junction number, because it is equal to n+sod(n) for n = 12049531491 and 12049531500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 961062 + ... + 973518.

It is an arithmetic number, because the mean of its divisors is an integer number (475957890).

Almost surely, 2^12049531530 is an apocalyptic number.

12049531530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12049531530 is an abundant number, since it is smaller than the sum of its proper divisors (18411773430).

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

12049531530 is a wasteful number, since it uses less digits than its factorization.

12049531530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14183.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 12049531530 in words is "twelve billion, forty-nine million, five hundred thirty-one thousand, five hundred thirty".