20001011002087 has 2 divisors, whose sum is σ = 20001011002088. Its totient is φ = 20001011002086.

The previous prime is 20001011002073. The next prime is 20001011002111. The reversal of 20001011002087 is 78020011010002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001011002087 is a prime.

It is a super-2 number, since 2×20001011002087² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001011002057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000505501043 + 10000505501044.

It is an arithmetic number, because the mean of its divisors is an integer number (10000505501044).

Almost surely, 2^{20001011002087} is an apocalyptic number.

20001011002087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001011002087 is an equidigital number, since it uses as much as digits as its factorization.

20001011002087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 20001011002087 its reverse (78020011010002), we get a palindrome (98021022012089).

The spelling of 20001011002087 in words is "twenty trillion, one billion, eleven million, two thousand, eighty-seven".