20211141287 has 2 divisors, whose sum is σ = 20211141288. Its totient is φ = 20211141286.

The previous prime is 20211141283. The next prime is 20211141437. The reversal of 20211141287 is 78214111202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20211141287 - 2² = 20211141283 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211141283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105570643 + 10105570644.

It is an arithmetic number, because the mean of its divisors is an integer number (10105570644).

Almost surely, 2^20211141287 is an apocalyptic number.

20211141287 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211141287 is an equidigital number, since it uses as much as digits as its factorization.

20211141287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 29.

Adding to 20211141287 its reverse (78214111202), we get a palindrome (98425252489).

The spelling of 20211141287 in words is "twenty billion, two hundred eleven million, one hundred forty-one thousand, two hundred eighty-seven".