30231145440340 has 96 divisors (see below), whose sum is σ = 70039133771040. Its totient is φ = 10889598566400.

The previous prime is 30231145440319. The next prime is 30231145440359. The reversal of 30231145440340 is 4304454113203.

It can be written as a sum of positive squares in 16 ways, for example, as 14974903146564 + 15256242293776 = 3869742^2 + 3905924^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30231145440296 and 30231145440305.

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, 450042276 + ... + 450109444.

It is an arithmetic number, because the mean of its divisors is an integer number (729574310115).

Almost surely, 2^{30231145440340} is an apocalyptic number.

It is an amenable number.

30231145440340 is an abundant number, since it is smaller than the sum of its proper divisors (39807988330700).

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

30231145440340 is a wasteful number, since it uses less digits than its factorization.

30231145440340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109453 (or 109451 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 30231145440340 its reverse (4304454113203), we get a palindrome (34535599553543).

The spelling of 30231145440340 in words is "thirty trillion, two hundred thirty-one billion, one hundred forty-five million, four hundred forty thousand, three hundred forty".