20701056011 has 2 divisors, whose sum is σ = 20701056012. Its totient is φ = 20701056010.

The previous prime is 20701055971. The next prime is 20701056017. The reversal of 20701056011 is 11065010702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20701056011 - 2²² = 20696861707 is a prime.

It is not a weakly prime, because it can be changed into another prime (20701056017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10350528005 + 10350528006.

It is an arithmetic number, because the mean of its divisors is an integer number (10350528006).

Almost surely, 2^20701056011 is an apocalyptic number.

20701056011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20701056011 is an equidigital number, since it uses as much as digits as its factorization.

20701056011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 23.

Adding to 20701056011 its reverse (11065010702), we get a palindrome (31766066713).

The spelling of 20701056011 in words is "twenty billion, seven hundred one million, fifty-six thousand, eleven".