12251230028 has 6 divisors (see below), whose sum is σ = 21439652556. Its totient is φ = 6125615012.

The previous prime is 12251230027. The next prime is 12251230063. The reversal of 12251230028 is 82003215221.

It is a junction number, because it is equal to n+sod(n) for n = 12251229979 and 12251230006.

It is not an unprimeable number, because it can be changed into a prime (12251230021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1531403750 + ... + 1531403757.

It is an arithmetic number, because the mean of its divisors is an integer number (3573275426).

Almost surely, 2^12251230028 is an apocalyptic number.

It is an amenable number.

12251230028 is a deficient number, since it is larger than the sum of its proper divisors (9188422528).

12251230028 is a wasteful number, since it uses less digits than its factorization.

12251230028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062807511 (or 3062807509 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 12251230028 its reverse (82003215221), we get a palindrome (94254445249).

The spelling of 12251230028 in words is "twelve billion, two hundred fifty-one million, two hundred thirty thousand, twenty-eight".