20110311329 has 2 divisors, whose sum is σ = 20110311330. Its totient is φ = 20110311328.

The previous prime is 20110311311. The next prime is 20110311343. The reversal of 20110311329 is 92311301102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19158712225 + 951599104 = 138415^2 + 30848^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110311329 - 2³² = 15815344033 is a prime.

It is not a weakly prime, because it can be changed into another prime (20110311629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055155664 + 10055155665.

It is an arithmetic number, because the mean of its divisors is an integer number (10055155665).

Almost surely, 2^20110311329 is an apocalyptic number.

It is an amenable number.

20110311329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110311329 is an equidigital number, since it uses as much as digits as its factorization.

20110311329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 20110311329 in words is "twenty billion, one hundred ten million, three hundred eleven thousand, three hundred twenty-nine".