20313220332113 has 4 divisors (see below), whose sum is σ = 20745416509440. Its totient is φ = 19881024154788.

The previous prime is 20313220332089. The next prime is 20313220332143. The reversal of 20313220332113 is 31123302231302.

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 20313220332113 - 2⁶ = 20313220332049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313220332143) 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, 216098088593 + ... + 216098088686.

It is an arithmetic number, because the mean of its divisors is an integer number (5186354127360).

Almost surely, 2^{20313220332113} is an apocalyptic number.

It is an amenable number.

20313220332113 is a deficient number, since it is larger than the sum of its proper divisors (432196177327).

20313220332113 is an equidigital number, since it uses as much as digits as its factorization.

20313220332113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432196177326.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20313220332113 its reverse (31123302231302), we get a palindrome (51436522563415).

The spelling of 20313220332113 in words is "twenty trillion, three hundred thirteen billion, two hundred twenty million, three hundred thirty-two thousand, one hundred thirteen".