20111101069 has 2 divisors, whose sum is σ = 20111101070. Its totient is φ = 20111101068.

The previous prime is 20111101063. The next prime is 20111101103. The reversal of 20111101069 is 96010111102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12824430025 + 7286671044 = 113245^2 + 85362^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111101069 - 2¹³ = 20111092877 is a prime.

It is a super-2 number, since 2×20111101069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20111101063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055550534 + 10055550535.

It is an arithmetic number, because the mean of its divisors is an integer number (10055550535).

Almost surely, 2^20111101069 is an apocalyptic number.

It is an amenable number.

20111101069 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111101069 is an equidigital number, since it uses as much as digits as its factorization.

20111101069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 22.

The spelling of 20111101069 in words is "twenty billion, one hundred eleven million, one hundred one thousand, sixty-nine".