20310131201 has 4 divisors (see below), whose sum is σ = 20439495252. Its totient is φ = 20180767152.

The previous prime is 20310131161. The next prime is 20310131227. The reversal of 20310131201 is 10213101302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10213101302 = 2 ⋅5106550651.

It can be written as a sum of positive squares in 2 ways, for example, as 8138746225 + 12171384976 = 90215^2 + 110324^2 .

It is a cyclic number.

It is not a de Polignac number, because 20310131201 - 2⁶ = 20310131137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20360131201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64681790 + ... + 64682103.

It is an arithmetic number, because the mean of its divisors is an integer number (5109873813).

Almost surely, 2^20310131201 is an apocalyptic number.

It is an amenable number.

20310131201 is a deficient number, since it is larger than the sum of its proper divisors (129364051).

20310131201 is a wasteful number, since it uses less digits than its factorization.

20310131201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129364050.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20310131201 its reverse (10213101302), we get a palindrome (30523232503).

The spelling of 20310131201 in words is "twenty billion, three hundred ten million, one hundred thirty-one thousand, two hundred one".