2131322069 has 2 divisors, whose sum is σ = 2131322070. Its totient is φ = 2131322068.

The previous prime is 2131322003. The next prime is 2131322159. The reversal of 2131322069 is 9602231312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2110299844 + 21022225 = 45938^2 + 4585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131322069 - 2⁸ = 2131321813 is a prime.

It is a super-2 number, since 2×2131322069² = 9085067523612881522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131322269) 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, 1065661034 + 1065661035.

It is an arithmetic number, because the mean of its divisors is an integer number (1065661035).

Almost surely, 2^2131322069 is an apocalyptic number.

It is an amenable number.

2131322069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131322069 is an equidigital number, since it uses as much as digits as its factorization.

2131322069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 2131322069 is about 46166.2438259818. The cubic root of 2131322069 is about 1286.9144992803.

The spelling of 2131322069 in words is "two billion, one hundred thirty-one million, three hundred twenty-two thousand, sixty-nine".