30023220321240 has 128 divisors (see below), whose sum is σ = 91216468224000. Its totient is φ = 7904268523008.

The previous prime is 30023220321239. The next prime is 30023220321271. The reversal of 30023220321240 is 4212302232003.

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 30023220321240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137891581 + ... + 138109139.

It is an arithmetic number, because the mean of its divisors is an integer number (712628658000).

Almost surely, 2^{30023220321240} is an apocalyptic number.

30023220321240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30023220321240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45608234112000).

30023220321240 is an abundant number, since it is smaller than the sum of its proper divisors (61193247902760).

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

30023220321240 is a wasteful number, since it uses less digits than its factorization.

30023220321240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232209 (or 232205 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 30023220321240 its reverse (4212302232003), we get a palindrome (34235522553243).

The spelling of 30023220321240 in words is "thirty trillion, twenty-three billion, two hundred twenty million, three hundred twenty-one thousand, two hundred forty".