20313231122103 has 16 divisors (see below), whose sum is σ = 29163562133760. Its totient is φ = 12529530394496.

The previous prime is 20313231122089. The next prime is 20313231122141. The reversal of 20313231122103 is 30122113231302.

It is a cyclic number.

It is not a de Polignac number, because 20313231122103 - 2¹³ = 20313231113911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313231122143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3375409275 + ... + 3375415292.

It is an arithmetic number, because the mean of its divisors is an integer number (1822722633360).

Almost surely, 2^{20313231122103} is an apocalyptic number.

20313231122103 is a deficient number, since it is larger than the sum of its proper divisors (8850331011657).

20313231122103 is a wasteful number, since it uses less digits than its factorization.

20313231122103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6750824646.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20313231122103 its reverse (30122113231302), we get a palindrome (50435344353405).

The spelling of 20313231122103 in words is "twenty trillion, three hundred thirteen billion, two hundred thirty-one million, one hundred twenty-two thousand, one hundred three".