20011012112087 has 2 divisors, whose sum is σ = 20011012112088. Its totient is φ = 20011012112086.

The previous prime is 20011012112041. The next prime is 20011012112177. The reversal of 20011012112087 is 78021121011002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20011012112087 - 2²⁶ = 20010945003223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011012112587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005506056043 + 10005506056044.

It is an arithmetic number, because the mean of its divisors is an integer number (10005506056044).

Almost surely, 2^{20011012112087} is an apocalyptic number.

20011012112087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011012112087 is an equidigital number, since it uses as much as digits as its factorization.

20011012112087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 26.

Adding to 20011012112087 its reverse (78021121011002), we get a palindrome (98032133123089).

The spelling of 20011012112087 in words is "twenty trillion, eleven billion, twelve million, one hundred twelve thousand, eighty-seven".