12030511426 has 4 divisors (see below), whose sum is σ = 18045767142. Its totient is φ = 6015255712.

The previous prime is 12030511421. The next prime is 12030511429. The reversal of 12030511426 is 62411503021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8961462225 + 3069049201 = 94665^2 + 55399^2 .

It is a super-2 number, since 2×12030511426² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12030511426.

It is not an unprimeable number, because it can be changed into a prime (12030511421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3007627855 + ... + 3007627858.

Almost surely, 2^12030511426 is an apocalyptic number.

12030511426 is a deficient number, since it is larger than the sum of its proper divisors (6015255716).

12030511426 is an equidigital number, since it uses as much as digits as its factorization.

12030511426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015255715.

The product of its (nonzero) digits is 1440, while the sum is 25.

The spelling of 12030511426 in words is "twelve billion, thirty million, five hundred eleven thousand, four hundred twenty-six".