20131230032101 has 4 divisors (see below), whose sum is σ = 20136915217804. Its totient is φ = 20125544846400.

The previous prime is 20131230032087. The next prime is 20131230032107. The reversal of 20131230032101 is 10123003213102.

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 8503061832001 + 11628168200100 = 2916001^2 + 3410010^2 .

It is a cyclic number.

It is not a de Polignac number, because 20131230032101 - 2¹¹ = 20131230030053 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 (20131230032107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2842587540 + ... + 2842594621.

It is an arithmetic number, because the mean of its divisors is an integer number (5034228804451).

Almost surely, 2^{20131230032101} is an apocalyptic number.

It is an amenable number.

20131230032101 is a deficient number, since it is larger than the sum of its proper divisors (5685185703).

20131230032101 is an equidigital number, since it uses as much as digits as its factorization.

20131230032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685185702.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20131230032101 its reverse (10123003213102), we get a palindrome (30254233245203).

The spelling of 20131230032101 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty million, thirty-two thousand, one hundred one".