12551023235 has 16 divisors (see below), whose sum is σ = 15291017472. Its totient is φ = 9887724000.

The previous prime is 12551023231. The next prime is 12551023241. The reversal of 12551023235 is 53232015521.

It is not a de Polignac number, because 12551023235 - 2² = 12551023231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12551023198 and 12551023207.

It is not an unprimeable number, because it can be changed into a prime (12551023231) 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, 2037410 + ... + 2043560.

It is an arithmetic number, because the mean of its divisors is an integer number (955688592).

Almost surely, 2^12551023235 is an apocalyptic number.

12551023235 is a deficient number, since it is larger than the sum of its proper divisors (2739994237).

12551023235 is an equidigital number, since it uses as much as digits as its factorization.

12551023235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12314.

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 12551023235 its reverse (53232015521), we get a palindrome (65783038756).

The spelling of 12551023235 in words is "twelve billion, five hundred fifty-one million, twenty-three thousand, two hundred thirty-five".