20000122101013 has 4 divisors (see below), whose sum is σ = 20869692627168. Its totient is φ = 19130551574860.

The previous prime is 20000122100977. The next prime is 20000122101017. The reversal of 20000122101013 is 31010122100002.

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 20000122101013 - 2¹⁷ = 20000121969941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000122100984 and 20000122101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000122101017) 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, 434785263043 + ... + 434785263088.

It is an arithmetic number, because the mean of its divisors is an integer number (5217423156792).

Almost surely, 2^{20000122101013} is an apocalyptic number.

20000122101013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20000122101013 is a deficient number, since it is larger than the sum of its proper divisors (869570526155).

20000122101013 is an equidigital number, since it uses as much as digits as its factorization.

20000122101013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869570526154.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20000122101013 its reverse (31010122100002), we get a palindrome (51010244201015).

The spelling of 20000122101013 in words is "twenty trillion, one hundred twenty-two million, one hundred one thousand, thirteen".