20120232303113 has 4 divisors (see below), whose sum is σ = 20995025011968. Its totient is φ = 19245439594260.

The previous prime is 20120232303107. The next prime is 20120232303133. The reversal of 20120232303113 is 31130323202102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20120232303113 - 2⁶ = 20120232303049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 874792708831 = 20120232303113 / (2 + 0 + 1 + 2 + 0 + 2 + 3 + 2 + 3 + 0 + 3 + 1 + 1 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20120232303133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437396354393 + ... + 437396354438.

It is an arithmetic number, because the mean of its divisors is an integer number (5248756252992).

Almost surely, 2^{20120232303113} is an apocalyptic number.

20120232303113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20120232303113 is a deficient number, since it is larger than the sum of its proper divisors (874792708855).

20120232303113 is an equidigital number, since it uses as much as digits as its factorization.

20120232303113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874792708854.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20120232303113 its reverse (31130323202102), we get a palindrome (51250555505215).

The spelling of 20120232303113 in words is "twenty trillion, one hundred twenty billion, two hundred thirty-two million, three hundred three thousand, one hundred thirteen".