20011322029 has 2 divisors, whose sum is σ = 20011322030. Its totient is φ = 20011322028.

The previous prime is 20011321933. The next prime is 20011322039. The reversal of 20011322029 is 92022311002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18258225129 + 1753096900 = 135123^2 + 41870^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011322029 - 2¹³ = 20011313837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011322039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005661014 + 10005661015.

It is an arithmetic number, because the mean of its divisors is an integer number (10005661015).

Almost surely, 2^20011322029 is an apocalyptic number.

It is an amenable number.

20011322029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011322029 is an equidigital number, since it uses as much as digits as its factorization.

20011322029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 20011322029 in words is "twenty billion, eleven million, three hundred twenty-two thousand, twenty-nine".