20420031301 has 2 divisors, whose sum is σ = 20420031302. Its totient is φ = 20420031300.

The previous prime is 20420031241. The next prime is 20420031349. The reversal of 20420031301 is 10313002402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20150086401 + 269944900 = 141951^2 + 16430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20420031301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20420031371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10210015650 + 10210015651.

It is an arithmetic number, because the mean of its divisors is an integer number (10210015651).

Almost surely, 2^20420031301 is an apocalyptic number.

It is an amenable number.

20420031301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20420031301 is an equidigital number, since it uses as much as digits as its factorization.

20420031301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20420031301 its reverse (10313002402), we get a palindrome (30733033703).

The spelling of 20420031301 in words is "twenty billion, four hundred twenty million, thirty-one thousand, three hundred one".