20110869011 has 2 divisors, whose sum is σ = 20110869012. Its totient is φ = 20110869010.

The previous prime is 20110868977. The next prime is 20110869017. The reversal of 20110869011 is 11096801102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20110869011 is a prime.

It is not a weakly prime, because it can be changed into another prime (20110869017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055434505 + 10055434506.

It is an arithmetic number, because the mean of its divisors is an integer number (10055434506).

Almost surely, 2^20110869011 is an apocalyptic number.

20110869011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110869011 is an equidigital number, since it uses as much as digits as its factorization.

20110869011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 29.

The spelling of 20110869011 in words is "twenty billion, one hundred ten million, eight hundred sixty-nine thousand, eleven".