20335483081 has 2 divisors, whose sum is σ = 20335483082. Its totient is φ = 20335483080.

The previous prime is 20335483009. The next prime is 20335483109. The reversal of 20335483081 is 18038453302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18629793081 + 1705690000 = 136491^2 + 41300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20335483081 is a prime.

It is a super-2 number, since 2×20335483081² (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 20335483081.

It is not a weakly prime, because it can be changed into another prime (20335483481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167741540 + 10167741541.

It is an arithmetic number, because the mean of its divisors is an integer number (10167741541).

Almost surely, 2^20335483081 is an apocalyptic number.

It is an amenable number.

20335483081 is a deficient number, since it is larger than the sum of its proper divisors (1).

20335483081 is an equidigital number, since it uses as much as digits as its factorization.

20335483081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 20335483081 in words is "twenty billion, three hundred thirty-five million, four hundred eighty-three thousand, eighty-one".