20770111033 has 6 divisors (see below), whose sum is σ = 24161149626. Its totient is φ = 17802952272.

The previous prime is 20770111007. The next prime is 20770111051. The reversal of 20770111033 is 33011107702.

It can be written as a sum of positive squares in only one way, i.e., 17724395689 + 3045715344 = 133133^2 + 55188^2 .

It is not a de Polignac number, because 20770111033 - 2¹³ = 20770102841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20770110989 and 20770111007.

It is not an unprimeable number, because it can be changed into a prime (20770111333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211939860 + ... + 211939957.

It is an arithmetic number, because the mean of its divisors is an integer number (4026858271).

Almost surely, 2^20770111033 is an apocalyptic number.

It is an amenable number.

20770111033 is a deficient number, since it is larger than the sum of its proper divisors (3391038593).

20770111033 is an equidigital number, since it uses as much as digits as its factorization.

20770111033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423879831 (or 423879824 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 25.

Adding to 20770111033 its reverse (33011107702), we get a palindrome (53781218735).

The spelling of 20770111033 in words is "twenty billion, seven hundred seventy million, one hundred eleven thousand, thirty-three".