20130211069 has 2 divisors, whose sum is σ = 20130211070. Its totient is φ = 20130211068.

The previous prime is 20130211063. The next prime is 20130211097. The reversal of 20130211069 is 96011203102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17380467225 + 2749743844 = 131835^2 + 52438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130211069 is a prime.

It is a super-2 number, since 2×20130211069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130211063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065105534 + 10065105535.

It is an arithmetic number, because the mean of its divisors is an integer number (10065105535).

Almost surely, 2^20130211069 is an apocalyptic number.

It is an amenable number.

20130211069 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130211069 is an equidigital number, since it uses as much as digits as its factorization.

20130211069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 20130211069 in words is "twenty billion, one hundred thirty million, two hundred eleven thousand, sixty-nine".