20201131273 has 2 divisors, whose sum is σ = 20201131274. Its totient is φ = 20201131272.

The previous prime is 20201131213. The next prime is 20201131309. The reversal of 20201131273 is 37213110202.

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., 19261831369 + 939299904 = 138787^2 + 30648^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20201131273 is a prime.

It is not a weakly prime, because it can be changed into another prime (20201131213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100565636 + 10100565637.

It is an arithmetic number, because the mean of its divisors is an integer number (10100565637).

Almost surely, 2^20201131273 is an apocalyptic number.

It is an amenable number.

20201131273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201131273 is an equidigital number, since it uses as much as digits as its factorization.

20201131273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 20201131273 its reverse (37213110202), we get a palindrome (57414241475).

The spelling of 20201131273 in words is "twenty billion, two hundred one million, one hundred thirty-one thousand, two hundred seventy-three".