12111032025 has 72 divisors (see below), whose sum is σ = 22270621464. Its totient is φ = 6287692800.

The previous prime is 12111031991. The next prime is 12111032069. The reversal of 12111032025 is 52023011121.

It can be written as a sum of positive squares in 12 ways, for example, as 10768835529 + 1342196496 = 103773^2 + 36636^2 .

It is not a de Polignac number, because 12111032025 - 2¹⁶ = 12110966489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12111031989 and 12111032007.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5137147 + ... + 5139503.

It is an arithmetic number, because the mean of its divisors is an integer number (309314187).

Almost surely, 2^12111032025 is an apocalyptic number.

12111032025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12111032025 is a deficient number, since it is larger than the sum of its proper divisors (10159589439).

12111032025 is a wasteful number, since it uses less digits than its factorization.

12111032025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971 (or 2963 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 12111032025 its reverse (52023011121), we get a palindrome (64134043146).

The spelling of 12111032025 in words is "twelve billion, one hundred eleven million, thirty-two thousand, twenty-five".