30023130242440 has 32 divisors (see below), whose sum is σ = 67552247819160. Its totient is φ = 12009215692800.

The previous prime is 30023130242437. The next prime is 30023130242453. The reversal of 30023130242440 is 4424203132003.

It can be written as a sum of positive squares in 4 ways, for example, as 27782534395396 + 2240595847044 = 5270914^2 + 1496862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30023130242399 and 30023130242408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15075370 + ... + 16950310.

Almost surely, 2^{30023130242440} is an apocalyptic number.

It is an amenable number.

30023130242440 is an abundant number, since it is smaller than the sum of its proper divisors (37529117576720).

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

30023130242440 is a wasteful number, since it uses less digits than its factorization.

30023130242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275273 (or 2275269 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 30023130242440 its reverse (4424203132003), we get a palindrome (34447333374443).

The spelling of 30023130242440 in words is "thirty trillion, twenty-three billion, one hundred thirty million, two hundred forty-two thousand, four hundred forty".