30515533031141 has 4 divisors (see below), whose sum is σ = 32310564385932. Its totient is φ = 28720501676352.

The previous prime is 30515533031129. The next prime is 30515533031143. The reversal of 30515533031141 is 14113033551503.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28678006384225 + 1837526646916 = 5355185^2 + 1355554^2 .

It is a cyclic number.

It is not a de Polignac number, because 30515533031141 - 2¹⁸ = 30515532768997 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897515677370 + ... + 897515677403.

It is an arithmetic number, because the mean of its divisors is an integer number (8077641096483).

Almost surely, 2^{30515533031141} is an apocalyptic number.

It is an amenable number.

30515533031141 is a deficient number, since it is larger than the sum of its proper divisors (1795031354791).

30515533031141 is a wasteful number, since it uses less digits than its factorization.

30515533031141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795031354790.

The product of its (nonzero) digits is 40500, while the sum is 35.

Adding to 30515533031141 its reverse (14113033551503), we get a palindrome (44628566582644).

The spelling of 30515533031141 in words is "thirty trillion, five hundred fifteen billion, five hundred thirty-three million, thirty-one thousand, one hundred forty-one".