12145555230 has 16 divisors (see below), whose sum is σ = 29149332624. Its totient is φ = 3238814720.

The previous prime is 12145555189. The next prime is 12145555319. The reversal of 12145555230 is 3255554121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12145555191 and 12145555200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202425891 + ... + 202425950.

It is an arithmetic number, because the mean of its divisors is an integer number (1821833289).

Almost surely, 2^12145555230 is an apocalyptic number.

12145555230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12145555230 is an abundant number, since it is smaller than the sum of its proper divisors (17003777394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12145555230 is a wasteful number, since it uses less digits than its factorization.

12145555230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404851851.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 12145555230 in words is "twelve billion, one hundred forty-five million, five hundred fifty-five thousand, two hundred thirty".