20111011153 has 2 divisors, whose sum is σ = 20111011154. Its totient is φ = 20111011152.

The previous prime is 20111011093. The next prime is 20111011157. The reversal of 20111011153 is 35111011102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13411261249 + 6699749904 = 115807^2 + 81852^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111011153 - 2¹⁷ = 20110880081 is a prime.

It is not a weakly prime, because it can be changed into another prime (20111011157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055505576 + 10055505577.

It is an arithmetic number, because the mean of its divisors is an integer number (10055505577).

Almost surely, 2^20111011153 is an apocalyptic number.

It is an amenable number.

20111011153 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111011153 is an equidigital number, since it uses as much as digits as its factorization.

20111011153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 20111011153 its reverse (35111011102), we get a palindrome (55222022255).

The spelling of 20111011153 in words is "twenty billion, one hundred eleven million, eleven thousand, one hundred fifty-three".