20310320011213 has 4 divisors (see below), whose sum is σ = 20357443723968. Its totient is φ = 20263196298460.

The previous prime is 20310320011211. The next prime is 20310320011237. The reversal of 20310320011213 is 31211002301302.

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 20310320011213 - 2¹ = 20310320011211 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 (20310320011211) 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, 23561855731 + ... + 23561856592.

It is an arithmetic number, because the mean of its divisors is an integer number (5089360930992).

Almost surely, 2^{20310320011213} is an apocalyptic number.

It is an amenable number.

20310320011213 is a deficient number, since it is larger than the sum of its proper divisors (47123712755).

20310320011213 is an equidigital number, since it uses as much as digits as its factorization.

20310320011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47123712754.

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

Adding to 20310320011213 its reverse (31211002301302), we get a palindrome (51521322312515).

The spelling of 20310320011213 in words is "twenty trillion, three hundred ten billion, three hundred twenty million, eleven thousand, two hundred thirteen".