20021087607011 has 2 divisors, whose sum is σ = 20021087607012. Its totient is φ = 20021087607010.

The previous prime is 20021087606957. The next prime is 20021087607107. The reversal of 20021087607011 is 11070678012002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20021087607011 - 2³⁸ = 19746209700067 is a prime.

It is not a weakly prime, because it can be changed into another prime (20021087667011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010543803505 + 10010543803506.

It is an arithmetic number, because the mean of its divisors is an integer number (10010543803506).

Almost surely, 2^{20021087607011} is an apocalyptic number.

20021087607011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021087607011 is an equidigital number, since it uses as much as digits as its factorization.

20021087607011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 35.

The spelling of 20021087607011 in words is "twenty trillion, twenty-one billion, eighty-seven million, six hundred seven thousand, eleven".