12013240030 has 32 divisors (see below), whose sum is σ = 23941733760. Its totient is φ = 4303247520.

The previous prime is 12013240027. The next prime is 12013240039. The reversal of 12013240030 is 3004231021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12013239986 and 12013240013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013240039) 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, 807640 + ... + 822379.

It is an arithmetic number, because the mean of its divisors is an integer number (748179180).

Almost surely, 2^12013240030 is an apocalyptic number.

12013240030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12013240030 is a deficient number, since it is larger than the sum of its proper divisors (11928493730).

12013240030 is a wasteful number, since it uses less digits than its factorization.

12013240030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630104.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12013240030 its reverse (3004231021), we get a palindrome (15017471051).

Subtracting from 12013240030 its reverse (3004231021), we obtain a palindrome (9009009009).

The spelling of 12013240030 in words is "twelve billion, thirteen million, two hundred forty thousand, thirty".