20012001011287 has 2 divisors, whose sum is σ = 20012001011288. Its totient is φ = 20012001011286.

The previous prime is 20012001011269. The next prime is 20012001011291. The reversal of 20012001011287 is 78211010021002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012001011287 - 2²³ = 20011992622679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012001011267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006000505643 + 10006000505644.

It is an arithmetic number, because the mean of its divisors is an integer number (10006000505644).

Almost surely, 2^{20012001011287} is an apocalyptic number.

20012001011287 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012001011287 is an equidigital number, since it uses as much as digits as its factorization.

20012001011287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 20012001011287 its reverse (78211010021002), we get a palindrome (98223011032289).

The spelling of 20012001011287 in words is "twenty trillion, twelve billion, one million, eleven thousand, two hundred eighty-seven".