20310145510530 has 32 divisors (see below), whose sum is σ = 51309841291200. Its totient is φ = 5130984128832.

The previous prime is 20310145510513. The next prime is 20310145510573. The reversal of 20310145510530 is 3501554101302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17815916545 + ... + 17815917684.

It is an arithmetic number, because the mean of its divisors is an integer number (1603432540350).

Almost surely, 2^{20310145510530} is an apocalyptic number.

20310145510530 is an abundant number, since it is smaller than the sum of its proper divisors (30999695780670).

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

20310145510530 is a wasteful number, since it uses less digits than its factorization.

20310145510530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35631834258.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 20310145510530 its reverse (3501554101302), we get a palindrome (23811699611832).

The spelling of 20310145510530 in words is "twenty trillion, three hundred ten billion, one hundred forty-five million, five hundred ten thousand, five hundred thirty".