30515234205340 has 48 divisors (see below), whose sum is σ = 64918357459200. Its totient is φ = 12047278403072.

The previous prime is 30515234205329. The next prime is 30515234205389. The reversal of 30515234205340 is 4350243251503.

It is a self number, because there is not a number n which added to its sum of digits gives 30515234205340.

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, 14397580 + ... + 16380499.

It is an arithmetic number, because the mean of its divisors is an integer number (1352465780400).

Almost surely, 2^{30515234205340} is an apocalyptic number.

It is an amenable number.

30515234205340 is an abundant number, since it is smaller than the sum of its proper divisors (34403123253860).

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

30515234205340 is a wasteful number, since it uses less digits than its factorization.

30515234205340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30778734 (or 30778732 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 30515234205340 its reverse (4350243251503), we get a palindrome (34865477456843).

The spelling of 30515234205340 in words is "thirty trillion, five hundred fifteen billion, two hundred thirty-four million, two hundred five thousand, three hundred forty".