20211141437 has 2 divisors, whose sum is σ = 20211141438. Its totient is φ = 20211141436.

The previous prime is 20211141287. The next prime is 20211141439. The reversal of 20211141437 is 73414111202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19751210521 + 459930916 = 140539^2 + 21446^2 .

It is a cyclic number.

It is not a de Polignac number, because 20211141437 - 2¹² = 20211137341 is a prime.

Together with 20211141439, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211141439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105570718 + 10105570719.

It is an arithmetic number, because the mean of its divisors is an integer number (10105570719).

Almost surely, 2^20211141437 is an apocalyptic number.

It is an amenable number.

20211141437 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211141437 is an equidigital number, since it uses as much as digits as its factorization.

20211141437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 20211141437 its reverse (73414111202), we get a palindrome (93625252639).

The spelling of 20211141437 in words is "twenty billion, two hundred eleven million, one hundred forty-one thousand, four hundred thirty-seven".