20333112061 has 2 divisors, whose sum is σ = 20333112062. Its totient is φ = 20333112060.

The previous prime is 20333112031. The next prime is 20333112109. The reversal of 20333112061 is 16021133302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19601680036 + 731432025 = 140006^2 + 27045^2 .

It is a cyclic number.

It is not a de Polignac number, because 20333112061 - 2¹⁹ = 20332587773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20333112031) 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 as a sum of consecutive naturals, namely, 10166556030 + 10166556031.

It is an arithmetic number, because the mean of its divisors is an integer number (10166556031).

Almost surely, 2^20333112061 is an apocalyptic number.

It is an amenable number.

20333112061 is a deficient number, since it is larger than the sum of its proper divisors (1).

20333112061 is an equidigital number, since it uses as much as digits as its factorization.

20333112061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20333112061 its reverse (16021133302), we get a palindrome (36354245363).

The spelling of 20333112061 in words is "twenty billion, three hundred thirty-three million, one hundred twelve thousand, sixty-one".