20103243313530 has 64 divisors (see below), whose sum is σ = 54218245536000. Its totient is φ = 4733338891776.

The previous prime is 20103243313453. The next prime is 20103243313597. The reversal of 20103243313530 is 3531334230102.

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

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, 1120573155 + ... + 1120591094.

It is an arithmetic number, because the mean of its divisors is an integer number (847160086500).

Almost surely, 2^{20103243313530} is an apocalyptic number.

20103243313530 is an abundant number, since it is smaller than the sum of its proper divisors (34115002222470).

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

20103243313530 is a wasteful number, since it uses less digits than its factorization.

20103243313530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2241164295.

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 20103243313530 its reverse (3531334230102), we get a palindrome (23634577543632).

The spelling of 20103243313530 in words is "twenty trillion, one hundred three billion, two hundred forty-three million, three hundred thirteen thousand, five hundred thirty".