12541123240 has 16 divisors (see below), whose sum is σ = 28217527380. Its totient is φ = 5016449280.

The previous prime is 12541123229. The next prime is 12541123271. The reversal of 12541123240 is 4232114521.

It can be written as a sum of positive squares in 2 ways, for example, as 12051209284 + 489913956 = 109778^2 + 22134^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156764001 + ... + 156764080.

Almost surely, 2^12541123240 is an apocalyptic number.

12541123240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12541123240 is an abundant number, since it is smaller than the sum of its proper divisors (15676404140).

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

12541123240 is a wasteful number, since it uses less digits than its factorization.

12541123240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313528092 (or 313528088 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12541123240 its reverse (4232114521), we get a palindrome (16773237761).

The spelling of 12541123240 in words is "twelve billion, five hundred forty-one million, one hundred twenty-three thousand, two hundred forty".