12511115030 has 16 divisors (see below), whose sum is σ = 22522505760. Its totient is φ = 5003890752.

The previous prime is 12511114981. The next prime is 12511115051. The reversal of 12511115030 is 3051111521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12511114993 and 12511115011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32327 + ... + 161453.

It is an arithmetic number, because the mean of its divisors is an integer number (1407656610).

Almost surely, 2^12511115030 is an apocalyptic number.

12511115030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12511115030 is a deficient number, since it is larger than the sum of its proper divisors (10011390730).

12511115030 is a wasteful number, since it uses less digits than its factorization.

12511115030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138823.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 12511115030 its reverse (3051111521), we get a palindrome (15562226551).

The spelling of 12511115030 in words is "twelve billion, five hundred eleven million, one hundred fifteen thousand, thirty".