30515533031140 has 24 divisors (see below), whose sum is σ = 64082864143872. Its totient is φ = 12206166588000.

The previous prime is 30515533031129. The next prime is 30515533031143. The reversal of 30515533031140 is 4113033551503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30515533031096 and 30515533031105.

It is not an unprimeable number, because it can be changed into a prime (30515533031143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2718367 + ... + 8271673.

It is an arithmetic number, because the mean of its divisors is an integer number (2670119339328).

Almost surely, 2^{30515533031140} is an apocalyptic number.

It is an amenable number.

30515533031140 is an abundant number, since it is smaller than the sum of its proper divisors (33567331112732).

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

30515533031140 is a wasteful number, since it uses less digits than its factorization.

30515533031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5828067 (or 5828065 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 30515533031140 its reverse (4113033551503), we get a palindrome (34628566582643).

The spelling of 30515533031140 in words is "thirty trillion, five hundred fifteen billion, five hundred thirty-three million, thirty-one thousand, one hundred forty".