20110697819 has 2 divisors, whose sum is σ = 20110697820. Its totient is φ = 20110697818.

The previous prime is 20110697759. The next prime is 20110697879. The reversal of 20110697819 is 91879601102.

It is a balanced prime because it is at equal distance from previous prime (20110697759) and next prime (20110697879).

It is a cyclic number.

It is not a de Polignac number, because 20110697819 - 2²⁴ = 20093920603 is a prime.

It is a super-2 number, since 2×20110697819² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20110697819.

It is not a weakly prime, because it can be changed into another prime (20110697879) 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, 10055348909 + 10055348910.

It is an arithmetic number, because the mean of its divisors is an integer number (10055348910).

Almost surely, 2^20110697819 is an apocalyptic number.

20110697819 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110697819 is an equidigital number, since it uses as much as digits as its factorization.

20110697819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 20110697819 in words is "twenty billion, one hundred ten million, six hundred ninety-seven thousand, eight hundred nineteen".