30240125203440 has 80 divisors (see below), whose sum is σ = 99258763916448. Its totient is φ = 7589678481408.

The previous prime is 30240125203427. The next prime is 30240125203451. The reversal of 30240125203440 is 4430252104203.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 30240125203398 and 30240125203407.

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, 3705893617 + ... + 3705901776.

Almost surely, 2^{30240125203440} is an apocalyptic number.

30240125203440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30240125203440 is an abundant number, since it is smaller than the sum of its proper divisors (69018638713008).

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

30240125203440 is a wasteful number, since it uses less digits than its factorization.

30240125203440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411795426 (or 7411795420 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 30240125203440 its reverse (4430252104203), we get a palindrome (34670377307643).

The spelling of 30240125203440 in words is "thirty trillion, two hundred forty billion, one hundred twenty-five million, two hundred three thousand, four hundred forty".