20122323213413 has 4 divisors (see below), whose sum is σ = 20122758534540. Its totient is φ = 20121887892288.

The previous prime is 20122323213283. The next prime is 20122323213437. The reversal of 20122323213413 is 31431232322102.

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 19967608431169 + 154714782244 = 4468513^2 + 393338^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122323213413 - 2²² = 20122319019109 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 (20122323213463) 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, 217591220 + ... + 217683677.

It is an arithmetic number, because the mean of its divisors is an integer number (5030689633635).

Almost surely, 2^{20122323213413} is an apocalyptic number.

It is an amenable number.

20122323213413 is a deficient number, since it is larger than the sum of its proper divisors (435321127).

20122323213413 is an equidigital number, since it uses as much as digits as its factorization.

20122323213413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435321126.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 20122323213413 its reverse (31431232322102), we get a palindrome (51553555535515).

The spelling of 20122323213413 in words is "twenty trillion, one hundred twenty-two billion, three hundred twenty-three million, two hundred thirteen thousand, four hundred thirteen".