20011233293 has 2 divisors, whose sum is σ = 20011233294. Its totient is φ = 20011233292.

The previous prime is 20011233227. The next prime is 20011233313. The reversal of 20011233293 is 39233211002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19487601604 + 523631689 = 139598^2 + 22883^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011233293 - 2¹⁴ = 20011216909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011239293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005616646 + 10005616647.

It is an arithmetic number, because the mean of its divisors is an integer number (10005616647).

Almost surely, 2^20011233293 is an apocalyptic number.

It is an amenable number.

20011233293 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011233293 is an equidigital number, since it uses as much as digits as its factorization.

20011233293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 20011233293 its reverse (39233211002), we get a palindrome (59244444295).

The spelling of 20011233293 in words is "twenty billion, eleven million, two hundred thirty-three thousand, two hundred ninety-three".