20732353091 has 2 divisors, whose sum is σ = 20732353092. Its totient is φ = 20732353090.

The previous prime is 20732352961. The next prime is 20732353151. The reversal of 20732353091 is 19035323702.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20732353091 - 2¹⁴ = 20732336707 is a prime.

It is not a weakly prime, because it can be changed into another prime (20732353391) 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, 10366176545 + 10366176546.

It is an arithmetic number, because the mean of its divisors is an integer number (10366176546).

Almost surely, 2^20732353091 is an apocalyptic number.

20732353091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20732353091 is an equidigital number, since it uses as much as digits as its factorization.

20732353091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 35.

Adding to 20732353091 its reverse (19035323702), we get a palindrome (39767676793).

The spelling of 20732353091 in words is "twenty billion, seven hundred thirty-two million, three hundred fifty-three thousand, ninety-one".