12502030021440 has 112 divisors (see below), whose sum is σ = 39804514508160. Its totient is φ = 3324588021760.

The previous prime is 12502030021427. The next prime is 12502030021487. The reversal of 12502030021440 is 4412003020521.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12502030021440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17793171 + ... + 18482450.

Almost surely, 2^{12502030021440} is an apocalyptic number.

12502030021440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12502030021440 is an abundant number, since it is smaller than the sum of its proper divisors (27302484486720).

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

12502030021440 is a wasteful number, since it uses less digits than its factorization.

12502030021440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36276000 (or 36275990 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12502030021440 its reverse (4412003020521), we get a palindrome (16914033041961).

The spelling of 12502030021440 in words is "twelve trillion, five hundred two billion, thirty million, twenty-one thousand, four hundred forty".