20301124013 has 4 divisors (see below), whose sum is σ = 20529226620. Its totient is φ = 20073021408.

The previous prime is 20301124007. The next prime is 20301124021. The reversal of 20301124013 is 31042110302.

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 6205973284 + 14095150729 = 78778^2 + 118723^2 .

It is a cyclic number.

It is not a de Polignac number, because 20301124013 - 2¹⁸ = 20300861869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301123982 and 20301124000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301124043) 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, 114051170 + ... + 114051347.

It is an arithmetic number, because the mean of its divisors is an integer number (5132306655).

Almost surely, 2^20301124013 is an apocalyptic number.

It is an amenable number.

20301124013 is a deficient number, since it is larger than the sum of its proper divisors (228102607).

20301124013 is an equidigital number, since it uses as much as digits as its factorization.

20301124013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228102606.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20301124013 its reverse (31042110302), we get a palindrome (51343234315).

The spelling of 20301124013 in words is "twenty billion, three hundred one million, one hundred twenty-four thousand, thirteen".