12540212435430 has 48 divisors (see below), whose sum is σ = 32606337604464. Its totient is φ = 3343873544640.

The previous prime is 12540212435411. The next prime is 12540212435473. The reversal of 12540212435430 is 3453421204521.

It is a happy number.

12540212435430 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 0 + 212 + 4 + 3 + 5 + 430 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2157901 + ... + 5453160.

It is an arithmetic number, because the mean of its divisors is an integer number (679298700093).

Almost surely, 2^{12540212435430} is an apocalyptic number.

12540212435430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12540212435430 is an abundant number, since it is smaller than the sum of its proper divisors (20066125169034).

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

12540212435430 is a wasteful number, since it uses less digits than its factorization.

12540212435430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7629381 (or 7629378 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 12540212435430 its reverse (3453421204521), we get a palindrome (15993633639951).

The spelling of 12540212435430 in words is "twelve trillion, five hundred forty billion, two hundred twelve million, four hundred thirty-five thousand, four hundred thirty".