20010132091 has 2 divisors, whose sum is σ = 20010132092. Its totient is φ = 20010132090.

The previous prime is 20010132083. The next prime is 20010132119. The reversal of 20010132091 is 19023101002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20010132091 - 2³ = 20010132083 is a prime.

It is not a weakly prime, because it can be changed into another prime (20010132071) 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, 10005066045 + 10005066046.

It is an arithmetic number, because the mean of its divisors is an integer number (10005066046).

Almost surely, 2^20010132091 is an apocalyptic number.

20010132091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010132091 is an equidigital number, since it uses as much as digits as its factorization.

20010132091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 20010132091 its reverse (19023101002), we get a palindrome (39033233093).

The spelling of 20010132091 in words is "twenty billion, ten million, one hundred thirty-two thousand, ninety-one".